FBL Financial (FFG) 10-Q 2 Aug 18 2018 Q2 Quarterly report Financial data

Document and entity information

Document and entity information Document - USD ($)	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document Information [Line Items]
Entity Registrant Name	FBL FINANCIAL GROUP INC
Entity Central Index Key	1,012,771
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float	$ 609,145,446
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		24,806,796
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		11,413

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investments:
Fixed maturities - available for sale, at fair value (amortized cost: 2018 - $6,922,505; 2017 - $6,757,250)	$ 7,173,415	$ 7,291,967
Equity securities at fair value (cost: 2018 - $99,279; 2017 - $96,715)	104,026	104,145
Mortgage loans	982,987	971,812
Real estate	1,543	1,543
Policy loans	194,838	191,398
Short-term investments	15,141	17,007
Other investments	44,724	42,371
Total investments	8,516,674	8,620,243
Cash and cash equivalents	23,705	52,696
Securities and indebtedness of related parties	127,876	130,240
Accrued investment income	75,044	76,468
Amounts receivable from affiliates	8,200	3,561
Reinsurance recoverable	103,032	108,948
Deferred acquisition costs	387,527	302,611
Value of insurance in force acquired	8,880	4,560
Current income taxes recoverable	0	3,269
Other assets	106,722	112,054
Assets held in separate accounts	638,061	651,963
Total assets	9,995,721	10,066,613
Future policy benefits:
Interest sensitive products	5,417,955	5,299,961
Traditional life insurance and accident and health products	1,775,968	1,750,504
Other policy claims and benefits	46,681	44,475
Supplementary contracts without life contingencies	312,399	322,630
Advance premiums and other deposits	265,763	267,023
Amounts payable to affiliates	1,299	1,164
Short-term Debt payable to non-affiliates	27,000	0
Long-term debt payable to non-affiliates	97,000	97,000
Current income taxes payable	2,984	0
Deferred income taxes	88,993	131,912
Other liabilities	93,930	111,131
Liabilities related to separate accounts	638,061	651,963
Total liabilities	8,768,033	8,677,763
FBL Financial Group, Inc. stockholders' equity:
Preferred stock, without par value, at liquidation value - authorized 10,000,000 shares, issued and outstanding 5,000,000 Series B shares	3,000	3,000
Accumulated other comprehensive income	131,081	284,983
Retained earnings	940,389	947,148
Total FBL Financial Group, Inc. stockholders’ equity	1,227,656	1,388,792
Noncontrolling interest	32	58
Total stockholders’ equity	1,227,688	1,388,850
Total liabilities and stockholders’ equity	9,995,721	10,066,613
Class A common stock, without par value - authorized 88,500,000 shares, issued and outstanding 24,806,796 shares in 2018 and 24,919,113 shares in 2017
FBL Financial Group, Inc. stockholders' equity:
Common stock, without par value	153,114	153,589
Class B common stock, without par value - authorized 1,500,000 shares, issued and outstanding 11,413 shares in 2018 and 2017
FBL Financial Group, Inc. stockholders' equity:
Common stock, without par value	$ 72	$ 72

Consolidated Balance Sheet Pare

Consolidated Balance Sheet Parenthetical disclosure - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	$ 6,922,505	$ 6,757,250
Available-for-sale Equity Securities, Amortized Cost Basis	$ 99,279	$ 96,715
Common Stock, Shares, Outstanding	24,818,209	24,930,526
Preferred Stock
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	5,000,000	5,000,000
Preferred Stock, Shares Outstanding	5,000,000	5,000,000
Common Class A
Common Stock, Shares Authorized	88,500,000	88,500,000
Common Stock, Shares, Issued	24,806,796	24,919,113
Common Stock, Shares, Outstanding	24,806,796	24,919,113
Common Class B
Common Stock, Shares Authorized	1,500,000	1,500,000
Common Stock, Shares, Issued	11,413	11,413
Common Stock, Shares, Outstanding	11,413	11,413

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Interest sensitive product charges	$ 30,906	$ 29,456	$ 61,004	$ 58,657
Traditional life insurance premiums	51,091	50,262	100,588	98,696
Net investment income	103,974	103,908	204,996	204,902
Net realized capital gains (losses)	841	921	(906)	518
Net other-than-temporary impairment losses recognized in earnings	(504)	0	(1,799)	(66)
Other income	3,637	4,450	8,237	8,210
Total revenues	189,945	188,997	372,120	370,917
Benefits and expenses:
Interest sensitive product benefits	62,637	58,251	123,982	121,011
Traditional life insurance benefits	43,725	42,610	89,181	85,564
Policyholder dividends	2,560	2,557	5,111	5,110
Underwriting, acquisition and insurance expenses	37,210	36,341	76,787	70,694
Interest expense	1,213	1,213	2,426	2,425
Other expenses	5,627	4,740	11,220	8,891
Total benefits and expenses	152,972	145,712	308,707	293,695
Income before equity method investments, income taxes and noncontrolling interest	36,973	43,285	63,413	77,222
Income taxes	(6,650)	(13,891)	(11,337)	(24,624)
Equity income, net of related income taxes	2,087	2,924	3,942	6,155
Net income	32,410	32,318	56,018	58,753
Net loss (income) attributable to noncontrolling interest	18	(27)	41	(29)
Net income attributable to FBL Financial Group, Inc.	$ 32,428	$ 32,291	$ 56,059	$ 58,724
Earnings per common share	$ 1.30	$ 1.29	$ 2.24	$ 2.34
Earnings per common share - assuming dilution	1.30	1.29	2.24	2.34
Cash dividends per common share	0.46	0.44	2.42	2.38
Cash dividend per common share
Benefits and expenses:
Cash dividends per common share	0.46	0.44	0.92	0.88
Special cash dividend per common share
Benefits and expenses:
Cash dividends per common share	$ 0	$ 0	$ 1.50	$ 1.50

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income Statement - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income		$ 32,410	$ 32,318	$ 56,018	$ 58,753
Change in net unrealized investment gains/losses	[1]	(55,797)	46,570	(148,951)	62,431
Change in underfunded status of postretirement benefit plans	[1]	267	189	529	371
Total other comprehensive income (loss), net of tax	[1]	(55,530)	46,759	(148,422)	62,802
Total comprehensive income (loss), net of tax		(23,120)	79,077	(92,404)	121,555
Comprehensive (income) loss attributable to noncontrolling interest		18	(27)	41	(29)
Total comprehensive income (loss) applicable to FBL Financial Group, Inc.		$ (23,102)	$ 79,050	$ (92,363)	$ 121,526
[1]	Other comprehensive income (loss) is recorded net of deferred income taxes and other adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities.

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholder's Equity - USD ($) $ in Thousands	Total		Series B Preferred Stock	Class A and Class B Common Stock	Accumulated Other Comprehensive Income		Retained Earnings	Non- controlling Interest
Balance at Dec. 31, 2016	$ 1,188,258		$ 3,000	$ 152,975	$ 149,555		$ 882,672	$ 56
Net income	58,753						58,724	29
Other comprehensive income	62,802	[1]			62,802
Issuance of common stock under compensation plans	440			440
Dividends on preferred stock	(75)						(75)
Dividends on common stock	(59,309)						(59,309)
Balance at Jun. 30, 2017	1,250,869		3,000	153,415	212,357		882,012	85
Balance at Dec. 31, 2017	1,388,850		3,000	153,661	284,983		947,148	58
Net income	56,018						56,059	(41)
Other comprehensive income	(148,422)	[1]			(148,422)
Issuance of common stock under compensation plans	320			320
Purchase of common stock	(8,849)			(795)			(8,054)
Dividends on preferred stock	(75)						(75)
Dividends on common stock	(60,169)						(60,169)
Receipts related in noncontrolling interest	15							15
Balance at Jun. 30, 2018	1,227,688		$ 3,000	$ 153,186	131,081		940,389	$ 32
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets | Accounting Standards Update 2016-01 [Member]	$ 0				$ (5,480)	[2]	$ 5,480
[1]	Other comprehensive income (loss) is recorded net of deferred income taxes and other adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities.
[2]	See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net income	$ 56,018	$ 58,753
Adjustments to reconcile net income to net cash provided by operating activities:
Interest credited to account balances	82,699	79,938
Charges for mortality, surrenders and administration	(60,081)	(58,037)
Net realized (gains) losses on investments	2,705	(452)
Change in fair value of derivatives	(3,089)	(2,466)
Increase in liabilities for life insurance and other future policy benefits	38,308	43,282
Deferral of acquisition costs	(22,244)	(21,908)
Amortization of deferred acquisition costs and value of insurance in force	20,318	16,565
Change in reinsurance recoverable	5,097	(2,728)
Provision for deferred income taxes	(3,466)	1,054
Other	10,971	6,787
Net cash provided by operating activities	127,236	120,788
Sales, maturities or repayments:
Fixed maturities - available for sale	352,051	293,162
Equity securities - available for sale	0	8,928
Mortgage loans	36,861	28,584
Derivative instruments	8,912	5,892
Policy loans	19,030	19,410
Securities and indebtedness of related parties	3,064	3,859
Real Estate	0	717
Other long-term investments	3,524	14
Acquisitions:
Fixed maturities - available for sale	(529,344)	(294,258)
Equity securities - available for sale	(2,283)	(1,102)
Mortgage loans	(47,936)	(90,450)
Derivative instruments	(7,049)	(4,557)
Policy loans	(22,470)	(19,786)
Securities and indebtedness of related parties	(8,476)	(6,859)
Other long-term investments	(6,531)	0
Short-term investments, net change	1,866	(13,273)
Purchases and disposals of property and equipment, net	(6,067)	(5,954)
Net cash used in investing activities	(204,848)	(75,673)
Financing activities
Contract holder account deposits	402,751	263,551
Contract holder account withdrawals	(311,878)	(239,237)
Dividends paid	(60,244)	(59,384)
Proceeds from Short-term Debt	27,000	0
Issuance or repurchase of common stock, net	(9,023)	181
Proceeds from (Payments for) Other Financing Activities	15	0
Net cash provided by (used in) financing activities	48,621	(34,889)
Increase (decrease) in cash and cash equivalents	(28,991)	10,226
Cash and cash equivalents at beginning of period	52,696	33,583
Cash and cash equivalents at end of period	23,705	43,809
Supplemental disclosures of cash flow information
Cash paid during the period for interest	(2,425)	(2,425)
Cash (paid) received during the period for income taxes	$ (20)	$ (3,602)

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Significant Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation The accompanying unaudited consolidated financial statements of FBL Financial Group, Inc. (we or the Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. Our financial statements include all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of our financial position and results of operations. Operating results for the three- and six-month periods ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . We encourage you to refer to the notes to our consolidated financial statements included in Item 8 of our Form 10-K for the year ended December 31, 2017 for a complete description of our material accounting policies. Also included in the Form 10-K is a description of areas of judgments and estimates and other information necessary to understand our financial position and results of operations. New Accounting Pronouncements Description Date of adoption Effect on our consolidated financial statements or other significant matters Standards adopted: Stockholders' Equity October 1, 2017 The new guidance was effective for 2018, with early adoption permitted. We adopted the new guidance in 2017 by reporting the reclassification in our Consolidated Statement of Stockholders’ Equity. We consider the remeasurement of deferred tax assets and liabilities a provisional estimate, so any adjustments to this estimate associated with components of AOCI during 2018 would result in additional reclassification. There have been no such adjustments during the six months ended June 30, 2018. Financial instruments - recognition and measurement In January 2016, the FASB issued guidance that amended certain aspects of the recognition and measurement of financial instruments. The new guidance primarily affected the accounting for equity securities, which are now carried at fair value with valuation changes recognized in the statement of operations rather than as other comprehensive income. The presentation and disclosure requirements for financial instruments and the methodology for assessing the need for a valuation allowance on deferred tax assets resulting from unrealized losses on available-for-sale fixed maturity securities were also revised under the new guidance. The new standard required the use of a modified retrospective method at adoption. January 1, 2018 Upon adoption, we reclassified $5.5 million of net unrealized investment gains, net of adjustments to deferred acquisition costs, interest sensitive policy reserves and income taxes, on our equity securities from AOCI to retained earnings as a cumulative effect adjustment. Adoption resulted in a decrease to net income of $1.9 million ($0.08 per basic and diluted earnings per share) during the six months ended June 30, 2018 and $0.6 million ($0.02 per basic and diluted earnings per share) during the second quarter of 2018. Revenue recognition In May 2014, the FASB issued guidance that outlined a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. Insurance contract and investment related revenue, which make up the majority of our earnings, were specifically excluded from the scope of this guidance. The new guidance was based on the principle that an entity should recognize revenue to reflect the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance also required disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to fulfill a contract. We had the option of using either a full retrospective or a modified retrospective approach for the adoption of the new standard. January 1, 2018 Our revenues that fall under the scope of the new guidance primarily consist of the net commissions on insurance and investment products we broker for others. We have evaluated those contracts and concluded that there was no change in timing or measurement of revenues, as the historical accounting is consistent with the new guidance. Accordingly, there was no impact from adoption. Standards not yet adopted: Leases In February 2016, the FASB issued a new lease accounting standard, which, for most lessees, will result in a gross-up of the balance sheet. Under the new standard, lessees will recognize the leased assets on the balance sheet and will recognize a corresponding liability for the present value of lease payments over the lease term. The new standard requires the application of judgment and estimates. Also, there are accounting policy elections that may be taken both at transition and for the accounting post-transition, including whether to adopt a short-term lease recognition exemption. January 1, 2019 We are currently evaluating the impact of this guidance on our consolidated financial statements. Our most significant lease is for our home office building. See Note 10 of Item 8 of our 2017 Form 10-K for a further description of this lease, including future commitments. Our other leases are primarily shorter term in nature, relating to equipment. Upon adoption we will be required to recognize and measure leases at the beginning of the earliest period presented using the modified retrospective approach. Financial Instruments - credit impairment In June 2016, the FASB issued guidance amending the accounting for the credit impairment of financial instruments. Under the new guidance, impairment losses are required to be estimated using an expected loss model under which a valuation allowance is established and adjusted over time. The valuation allowance will be based on the probability of loss over the life of the instrument, considering historical, current and forecasted information. The new guidance differs significantly from the incurred loss model used today, and will result in the earlier recognition of impairment losses. The new guidance may also increase the volatility of earnings to the extent actual results differ from the assumptions used in the establishment of the valuation allowance. The financial instruments for which we will be required to use the new model include but are not limited to, mortgage loans, lease receivables and reinsurance recoverables. Our available-for-sale fixed maturities will continue to apply the incurred loss model. However, rather than impairment losses resulting in a permanent reduction of carrying value as they do today, such losses will be in the form of a valuation allowance, which can be increased in the case of future credit losses or decreased should conditions improve. January 1, 2020 We are currently evaluating the impact of this new guidance on our consolidated financial statements. We believe the most significant impact upon adoption will be the establishment of an additional valuation allowance for our mortgage loan investments. This guidance will be applied using a modified retrospective approach by recording a cumulative effect adjustment to retained earnings as of the beginning of the year of adoption. Reclassifications During the first quarter of 2018, we began reporting our holdings of Federal Home Loan Bank of Des Moines (FHLB) common stock, which we are required to hold as a member of the FHLB system, as other investments rather than equity securities as the stock is restricted in nature. The 2017 consolidated financial statements have been reclassified to conform to the current financial statement presentation.

Investment Operations

Investment Operations	6 Months Ended
	Jun. 30, 2018
Investment Operations [Abstract]
Investment Operations	Investment Operations Fixed Maturity and Equity Securities Available-For-Sale Fixed Maturity Securities by Investment Category June 30, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,259,368 $ 169,981 $ (56,088 ) $ 3,373,261 $ — Residential mortgage-backed 577,566 29,353 (7,450 ) 599,469 1,788 Commercial mortgage-backed 863,195 19,067 (21,289 ) 860,973 — Other asset-backed 770,178 17,452 (3,606 ) 784,024 1,573 United States Government and agencies 20,491 1,099 (230 ) 21,360 — States and political subdivisions 1,431,707 106,026 (3,405 ) 1,534,328 — Total fixed maturities $ 6,922,505 $ 342,978 $ (92,068 ) $ 7,173,415 $ 3,361 Available-For-Sale Fixed Maturity and Equity Securities by Investment Category December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,374,927 $ 329,299 $ (15,955 ) $ 3,688,271 $ (504 ) Residential mortgage-backed 483,671 35,890 (3,280 ) 516,281 339 Commercial mortgage-backed 674,076 34,464 (3,233 ) 705,307 — Other asset-backed 818,071 18,645 (3,214 ) 833,502 845 United States Government and agencies 23,378 1,606 (79 ) 24,905 — States and political subdivisions 1,383,127 141,813 (1,239 ) 1,523,701 — Total fixed maturities $ 6,757,250 $ 561,717 $ (27,000 ) $ 7,291,967 $ 680 Equity securities: Non-redeemable preferred stocks $ 92,951 $ 7,146 $ (265 ) $ 99,832 Common stocks 3,764 549 — 4,313 Total equity securities $ 96,715 $ 7,695 $ (265 ) $ 104,145 (1) Non-credit losses subsequent to the initial impairment measurement date on other-than-temporary impairment (OTTI) losses are included in the gross unrealized gains and gross unrealized losses columns above. The non-credit loss component of OTTI losses for residential mortgage-backed and other asset-backed securities at June 30, 2018 and December 31, 2017 were in an unrealized gain position due to increases in estimated fair value subsequent to initial recognition of non-credit losses on such securities. (2) Corporate securities include hybrid preferred securities with a fair value of $13.7 million at June 30, 2018 and $17.5 million at December 31, 2017 . Corporate securities also include redeemable preferred stock with a fair value of $20.6 million at June 30, 2018 and $21.7 million at December 31, 2017 . Available-For-Sale Fixed Maturities by Maturity Date June 30, 2018 Amortized Cost Fair Value (Dollars in thousands) Due in one year or less $ 129,205 $ 132,022 Due after one year through five years 547,317 566,723 Due after five years through ten years 713,103 727,046 Due after ten years 3,321,941 3,503,158 4,711,566 4,928,949 Mortgage-backed and other asset-backed 2,210,939 2,244,466 Total fixed maturities $ 6,922,505 $ 7,173,415 Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Fixed maturities not due at a single maturity date have been included in the above table in the year of final contractual maturity. Net Unrealized Gains on Investments in Accumulated Other Comprehensive Income June 30, December 31, (Dollars in thousands) Net unrealized appreciation on: Fixed maturities - available for sale $ 250,910 $ 534,718 Equity securities - available for sale — 7,430 250,910 542,148 Adjustments for assumed changes in amortization pattern of: Deferred acquisition costs (65,530 ) (147,173 ) Value of insurance in force acquired (9,459 ) (14,870 ) Unearned revenue reserve 7,108 12,705 Adjustments for assumed changes in policyholder liabilities (4,199 ) (18,499 ) Provision for deferred income taxes (37,555 ) (78,605 ) Net unrealized investment gains $ 141,275 $ 295,706 Net unrealized investment gains and losses are recorded net of deferred income taxes and other adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities. Subsequent changes in the fair value of securities for which a previous non-credit OTTI loss was recognized in accumulated other comprehensive income, are reported along with changes in fair value for which no OTTI losses were previously recognized. Fixed Maturity Securities with Unrealized Losses by Length of Time June 30, 2018 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 927,826 $ (36,269 ) $ 164,984 $ (19,819 ) $ 1,092,810 $ (56,088 ) 60.9 % Residential mortgage-backed 245,127 (6,475 ) 27,229 (975 ) 272,356 (7,450 ) 8.1 Commercial mortgage-backed 442,114 (18,046 ) 29,415 (3,243 ) 471,529 (21,289 ) 23.1 Other asset-backed 299,747 (2,234 ) 67,874 (1,372 ) 367,621 (3,606 ) 3.9 United States Government and agencies 5,010 (180 ) 1,846 (50 ) 6,856 (230 ) 0.3 States and political subdivisions 103,189 (1,829 ) 17,393 (1,576 ) 120,582 (3,405 ) 3.7 Total fixed maturities $ 2,023,013 $ (65,033 ) $ 308,741 $ (27,035 ) $ 2,331,754 $ (92,068 ) 100.0 % Fixed Maturity and Equity Securities with Unrealized Losses by Length of Time December 31, 2017 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 85,019 $ (1,261 ) $ 183,820 $ (14,694 ) $ 268,839 $ (15,955 ) 59.1 % Residential mortgage-backed 76,393 (1,757 ) 31,779 (1,523 ) 108,172 (3,280 ) 12.1 Commercial mortgage-backed 151,158 (2,078 ) 16,398 (1,155 ) 167,556 (3,233 ) 12.0 Other asset-backed 159,111 (2,006 ) 71,064 (1,208 ) 230,175 (3,214 ) 11.9 United States Government and agencies 5,698 (47 ) 1,864 (32 ) 7,562 (79 ) 0.3 States and political subdivisions 5,904 (96 ) 20,505 (1,143 ) 26,409 (1,239 ) 4.6 Total fixed maturities $ 483,283 $ (7,245 ) $ 325,430 $ (19,755 ) $ 808,713 $ (27,000 ) 100.0 % Equity securities: Non-redeemable preferred stocks $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 ) Total equity securities $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 ) Fixed maturities in the above tables include 642 securities from 406 issuers at June 30, 2018 and 247 securities from 154 issuers at December 31, 2017 . Unrealized losses increased during the six months ended June 30, 2018 due to higher Treasury rates and wider credit spreads. We do not consider securities to be OTTI when the market decline is attributable to factors such as interest rate movements, market volatility, liquidity, spread widening and credit quality when recovery of all amounts due under the contractual terms of the security is anticipated. Based on our intent not to sell or our belief that we will not be required to sell these securities before recovery of their amortized cost basis, we do not consider these investments to be OTTI at June 30, 2018 . We will continue to monitor the investment portfolio for future changes in issuer facts and circumstances that could result in future impairments beyond those currently identified. Our largest unrealized loss was from an oil field service provider and totaled $2.0 million at June 30, 2018 . As described more fully in Note 1 to our consolidated financial statements included in Item 8 of our Form 10-K for the year ended December 31, 2017, we perform a regular evaluation of all investment classes for impairment, including fixed maturity securities and equity securities, in order to evaluate whether such investments are OTTI. Credit Loss Component of Other-Than-Temporary Impairments on Fixed Maturities Six months ended June 30, 2018 2017 (Dollars in thousands) Balance at beginning of period $ (12,392 ) $ (14,500 ) Reductions due to investments sold or paid down 3,369 829 Reduction for credit loss that no longer has a portion of the OTTI loss recognized in other comprehensive income 2,529 587 Balance at end of period $ (6,494 ) $ (13,084 ) The table above sets forth the amount of credit loss impairments on fixed maturities held by the Company as of the dates indicated for which the non-credit portion of the OTTI was recognized in other comprehensive income and corresponding changes in such amounts. Credit loss impairments with no portion of the loss recognized in other comprehensive income, such as securities for which OTTI was measured at fair value, are excluded from the table. Realized Gains (Losses) - Recorded in Income Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Realized gains (losses) on sales of investments Fixed maturities: Gross gains $ 1,713 $ 1,081 $ 1,796 $ 1,205 Gross losses (1 ) (414 ) (1 ) (941 ) Equity securities — (90 ) — (90 ) Other long-term investments (5 ) 40 (18 ) 40 Real estate — 304 — 304 1,707 921 1,777 518 Net unrealized losses recognized during the period on equity securities held at the end of the period (1) (866 ) — (2,683 ) — Net realized gains (losses) 841 921 (906 ) 518 Impairment losses recognized in earnings: Other credit-related (2) (504 ) — (1,799 ) (66 ) Net realized gains (losses) on investments recorded in income $ 337 $ 921 $ (2,705 ) $ 452 (1) See Note 1 to our consolidated financial statements for discussion of change in accounting policy for equity securities during the quarter. (2) Amount represents credit-related losses for fixed maturities written down to fair value through income and impairment losses related to investments accounted for under the equity method of accounting, which are included in securities and indebtedness of related parties within our consolidated balance sheets. Proceeds from sales of fixed maturities totaled $56.3 million during the six months ended June 30, 2018 and $85.1 million during the six months ended June 30, 2017 . Realized gains and losses on sales of investments are determined on the basis of specific identification. Mortgage Loans Our mortgage loan portfolio consists of commercial mortgage loans that we have originated. Our lending policies require that the loans be collateralized by the value of the related property, establish limits on the amount that can be loaned to one borrower and require diversification by geographic location and collateral type. We originate loans with an initial loan-to-value ratio that provides sufficient collateral to absorb losses should we be required to foreclose and take possession of the collateral. In order to identify impairment losses, management maintains and regularly reviews a watch list of mortgage loans that have heightened risk. These loans may include those with borrowers delinquent on contractual payments, borrowers experiencing financial difficulty, increases in rental real estate vacancies and significant declines in collateral value. We evaluate each of our mortgage loans individually and establish an estimated loss, if needed, for each impaired loan identified. An estimated loss is needed for loans for which we do not believe we will collect all amounts due according to the contractual terms of the respective loan agreements. Any loan delinquent on contractual payments is considered non-performing. Mortgage loans are placed on non-accrual status if we have concerns regarding the collectability of future payments. Interest income on non-performing loans is generally recognized on a cash basis. Once mortgage loans are classified as non-accrual loans, the resumption of the interest accrual would commence only after all past due interest has been collected or the mortgage loan has been restructured such that the collection of interest is considered likely. At June 30, 2018 and December 31, 2017 , there were no non-performing loans over 90 days past due on contractual payments. At June 30, 2018 , we had committed to provide additional funding for mortgage loans totaling $16.2 million . These commitments arose in the normal course of business at terms that are comparable to similar investments. Mortgage Loans by Collateral Type June 30, 2018 December 31, 2017 Collateral Type Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) Office $ 415,920 42.3 % $ 410,090 42.2 % Retail 295,997 30.1 292,257 30.1 Industrial 208,815 21.2 207,180 21.3 Other 62,255 6.4 62,285 6.4 Total $ 982,987 100.0 % $ 971,812 100.0 % Mortgage Loans by Geographic Location within the United States June 30, 2018 December 31, 2017 Region of the United States Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) South Atlantic $ 278,061 28.3 % $ 296,947 30.5 % Pacific 155,917 15.9 146,320 15.0 West North Central 124,177 12.6 127,096 13.1 Mountain 103,331 10.5 105,627 10.9 East North Central 102,597 10.4 91,971 9.5 West South Central 92,322 9.4 85,566 8.8 East South Central 66,063 6.7 67,228 6.9 New England 34,286 3.5 35,005 3.6 Middle Atlantic 26,233 2.7 16,052 1.7 Total $ 982,987 100.0 % $ 971,812 100.0 % Mortgage Loans by Loan-to-Value Ratio June 30, 2018 December 31, 2017 Loan-to-Value Ratio Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 0% - 50% $ 381,586 38.8 % $ 334,037 34.4 % 51% - 60% 250,732 25.5 258,359 26.6 61% - 70% 310,805 31.6 297,404 30.6 71% - 80% 21,212 2.2 63,116 6.5 81% - 90% 18,652 1.9 18,896 1.9 Total $ 982,987 100.0 % $ 971,812 100.0 % The loan-to-value ratio is determined using the most recent appraised value. Appraisals are updated periodically when there is indication of a possible significant collateral decline or there are loan modifications or refinance requests. Mortgage Loans by Year of Origination June 30, 2018 December 31, 2017 Year of Origination Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 2018 $ 46,500 4.6 % $ — — % 2017 211,055 21.5 214,365 22.1 2016 151,923 15.5 154,359 15.9 2015 135,616 13.8 144,890 14.9 2014 76,363 7.8 77,866 8.0 2013 and prior 361,530 36.8 380,332 39.1 Total $ 982,987 100.0 % $ 971,812 100.0 % Impaired Mortgage Loans June 30, 2018 December 31, 2017 (Dollars in thousands) Unpaid principal balance $ 18,826 $ 19,027 Less: Related allowance (397 ) (497 ) Carrying value of impaired mortgage loans $ 18,429 $ 18,530 Allowance on Mortgage Loans Six months ended June 30, 2018 2017 (Dollars in thousands) Balance at beginning of period $ 497 $ 713 Recoveries (100 ) (98 ) Balance at end of period $ 397 $ 615 Mortgage Loan Modifications Our commercial mortgage loan portfolio can include loans that have been modified. We assess loan modifications on a loan-by-loan basis to evaluate whether a troubled debt restructuring has occurred. Generally, the types of concessions include: reduction of the contractual interest rate to a below-market rate, extension of the maturity date and/or a reduction of accrued interest. The amount, timing and extent of the concession granted is considered in determining if an impairment loss is needed for the restructuring. There were no loan modifications during the six months ended June 30, 2018 or June 30, 2017 . Low Income Housing Tax Credit Investments (LIHTC) We invest in non-guaranteed federal LIHTC that are included in securities and indebtedness of related parties in the consolidated balance sheets. These investments take the form of limited partnerships, which in turn invest in a number of low income housing projects. We use the equity method of accounting for these investments. The limited partnerships generate pre-tax operating losses primarily from the depreciation of the underlying properties, but after-tax gains as the related tax credits are realized and the operating losses are deducted. The timing of the realization of tax credits is subject to fluctuation from period to period due to the timing of housing project completions and the approval of tax credits. Impairment losses may occur when the carrying value of the limited partnership exceeds the future tax benefits. We recognized $0.8 million of impairment losses on these investments during the first six months of 2018, which is reported as other-than-temporary impairment losses in the consolidated statement of operations. The Tax Act did not impact the tax credits we expect to receive from these investments. Equity income, however, was lower as a result of the Tax Act by $0.9 million during the second quarter 2018, and $2.3 million for the six months ended June 30, 2018 due to impairment losses recorded by the underlying partnerships in their fourth quarter earnings. Equity income from LIHTC is generally recorded one quarter in arrears as financial information becomes available from the investee. The carrying value of our LIHTC totaled $75.4 million at June 30, 2018 and $82.4 million at December 31, 2017 . LIHTC Equity Income (Loss), Net of Related Income Taxes Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Equity losses from LIHTC $ (3,304 ) $ (2,938 ) $ (6,309 ) $ (4,743 ) Income tax benefits: Tax benefits from equity losses 694 1,028 1,325 1,660 Investment tax credits 3,558 3,568 7,127 7,097 Equity income from LIHTC, net of related income tax benefits $ 948 $ 1,658 $ 2,143 $ 4,014 At June 30, 2018 , we had committed to provide additional funds for limited partnerships and limited liability companies in which we invest. The amounts of these unfunded commitments totaled $43.4 million , including $1.6 million for LIHTC commitments, which are summarized by year in the following table. LIHTC Commitments by Year June 30, 2018 (Dollars in thousands) 2018 $ 472 2019 248 2020-2025 884 Total $ 1,604 Variable Interest Entities We evaluate our variable interest entity (VIE) investees to determine whether the level of our direct ownership interest, our rights to manage operations, or our obligation to provide ongoing financial support are such that we are the primary beneficiary of the entity, and would therefore be required to consolidate it for financial reporting purposes. After determining that VIE status exists, we review our involvement in the VIE to determine whether we have both the power to direct activities that most significantly impact the economic performance of the VIE, and the obligation to absorb losses or the rights to receive benefits that could be potentially significant to the VIE. This analysis includes a review of the purpose and design of the VIE as well as the role that we played in the formation of the entity and how that role could impact our ability to control the VIE. We also review the activities and decisions considered significant to the economic performance of the VIE and assess what power we have in directing those activities and decisions. Finally, we review the agreements in place to determine if there are any guarantees that would affect our maximum exposure to loss. We have reviewed the circumstances surrounding our investments in VIEs, which are classified as securities and indebtedness of related parties and consist of LIHTC, limited partnerships or limited liability companies accounted for under the equity method. In addition, we have reviewed the ownership interests in our VIEs and determined that we do not hold direct majority ownership or have other contractual rights (such as kick out rights) that give us effective control over these entities resulting in us having both the power to direct activities that most significantly impact the economic performance of the VIE and the obligation to absorb losses or the right to receive benefits that could be potentially significant to the VIE. The maximum loss exposure relative to our VIEs is limited to the carrying value and any unfunded commitments that exist for each particular VIE. We also have not provided additional support or other guarantees that was not previously contractually required (financial or otherwise) to any of the VIEs as of June 30, 2018 or December 31, 2017. Based on this analysis, none of our VIEs were required to be consolidated for any reporting periods presented in this Form 10-Q. VIE Investments by Category June 30, 2018 December 31, 2017 Carrying Value Maximum Exposure to Loss Carrying Value Maximum Exposure to Loss (Dollars in thousands) LIHTC $ 75,374 $ 76,978 $ 82,417 $ 84,103 Investment companies 31,300 62,706 25,335 62,372 Real estate limited partnerships 9,317 19,463 8,589 20,590 Other 724 918 1,182 1,488 Total $ 116,715 $ 160,065 $ 117,523 $ 168,553 In addition, we make passive investments in the normal course of business in structured securities issued by VIEs for which we are not the investment manager. These structured securities include all of the residential mortgage-backed securities, commercial mortgage-backed securities and other asset-backed securities included in our fixed maturities. Our maximum exposure to loss on these securities is limited to our carrying value of the investment. We have determined that we are not the primary beneficiary of these structured securities because we do not have the power to direct the activities that most significantly impact the entities’ economic performance. Derivative Instruments Our primary derivative exposure relates to purchased call options, which provide an economic hedge against the embedded derivatives in our indexed annuity and universal life insurance products. We also have embedded derivatives within our modified coinsurance agreements as well as an interest-only fixed maturity investment. We do not apply hedge accounting to any of our derivative positions, and they are held at fair value. Derivatives Instruments by Type June 30, 2018 December 31, 2017 (Dollars in thousands) Assets Freestanding derivatives: Call options (reported in other investments) $ 14,002 $ 14,824 Embedded derivatives: Modified coinsurance (reported in reinsurance recoverable) 1,145 2,125 Interest-only security (reported in fixed maturities) 1,624 2,096 Total assets $ 16,771 $ 19,045 Liabilities Embedded derivatives: Indexed annuity and universal life products (reported in liability for future policy benefits) $ 32,969 $ 27,774 Modified coinsurance agreements (reported in other liabilities) 106 268 Total liabilities $ 33,075 $ 28,042 Derivative Income (Loss) Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Change in fair value of free standing derivatives: Call options $ 2,193 $ 1,400 $ 1,041 $ 3,765 Change in fair value of embedded derivatives: Modified coinsurance agreements 125 (12 ) (818 ) (1,422 ) Interest-only security (44 ) (174 ) (79 ) (195 ) Indexed annuity and universal life products 281 (91 ) 2,945 318 Total income from derivatives $ 2,555 $ 1,123 $ 3,089 $ 2,466 Derivative income is reported in net investment income except for the change in fair value of the embedded derivatives on our indexed annuity and universal life products, which is reported in interest sensitive product benefits. We are exposed to credit losses in the event of nonperformance of the derivative counterparties. This credit risk is minimized by purchasing such agreements from financial institutions with high credit ratings (currently rated A or better by nationally recognized statistical rating organizations). We have also entered into credit support agreements with the counterparties requiring them to post collateral when net exposures exceed pre-determined thresholds that vary by counterparty. The net amount of such exposure is essentially the market value less collateral held for such agreements with each counterparty. The call options are supported by securities collateral received of $9.5 million at June 30, 2018 , which is held in a separate custodial account. Subject to certain constraints, we are permitted to sell or re-pledge this collateral, but do not have legal rights to the collateral; accordingly, it has not been recorded on our balance sheet. At June 30, 2018 , none of the collateral had been sold or re-pledged. As of June 30, 2018 , our net derivative exposure was $4.8 million .

Fair Values

Fair Values	6 Months Ended
	Jun. 30, 2018
Fair Values [Abstract]
Fair Value	Fair Values Fair value is based on an exit price, which is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As not all financial instruments are actively traded, various valuation methods may be used to estimate fair value. These methods rely on observable market data, or, if observable market data is not available, the best information available. Significant judgment may be required to interpret the data and select the assumptions used in the valuation estimates, particularly when observable market data is not available. In the discussion that follows, we have ranked our financial instruments by the level of judgment used in the determination of the fair values presented above. The levels are defined as follows: • Level 1 - Fair values are based on unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2 - Fair values are based on inputs, other than quoted prices from active markets, that are observable for the asset or liability, either directly or indirectly. • Level 3 - Fair values are based on significant unobservable inputs for the asset or liability. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, a financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the financial instrument. From time to time there may be movements between levels as inputs become more or less observable, which may depend on several factors including the activity of the market for the specific security, the activity of the market for similar securities, the level of risk spreads and the source from which we obtain the information. Transfers into or out of any level are measured as of the beginning of the period. The following methods and assumptions were used in estimating the fair value of our financial instruments measured at fair value on a recurring basis: Fixed maturities: Level 1 fixed maturities consist of U.S. Treasury issues that are actively traded, allowing us to use current market prices as an estimate of their fair value. Level 2 fixed maturities consist of corporate, mortgage- and asset-backed, United States Government agencies, state and political subdivisions and private placement corporate securities with observable market data, and in some circumstances recent trade activity. When quoted prices of identical assets in active markets are not available, our first priority is to obtain prices from third party pricing vendors. We have regular interaction with these vendors to ensure we understand their pricing methodologies and to confirm they are utilizing observable market information. Their methodologies vary by asset class and include inputs such as estimated cash flows, benchmark yields, reported trades, credit quality, industry events and economic events. Fixed maturities with validated prices from pricing services, which includes the majority of our public fixed maturities in all asset classes, are generally reflected in Level 2. Also included in Level 2 are private placement corporate bonds with no quoted market prices available, for which an internal model using substantially all observable inputs or a matrix pricing valuation approach is used. In the matrix approach, securities are grouped into pricing categories that vary by sector, rating and average life. Each pricing category is assigned a risk spread based on studies of observable public market data. The expected cash flows of the security are then discounted back at the current Treasury curve plus the appropriate risk spread. Level 3 fixed maturities include corporate, mortgage- and asset-backed and private placement corporate securities for which there is little or no current market data available. We use external pricing sources, or if prices are not available we will estimate fair value internally. Fair values of private corporate investments in Level 3 are determined by reference to the public market, private transactions or valuations for comparable companies or assets in the relevant asset class when such amounts are available. For other securities for which an exit price based on relevant observable inputs is not obtained, the fair value is determined using a matrix calculation. Fair values estimated through the use of matrix pricing methods rely on an estimate of credit spreads to a risk-free U.S. Treasury yield. Selecting the credit spread requires judgment based on an understanding of the security and may include a market liquidity premium. Our selection of comparable companies as well as the level of spread requires significant judgment. Increases in spreads used in our matrix models, or those used to value comparable companies, will result in a decrease in discounted cash flows used, and accordingly in the estimated fair value of the security. We obtain fixed maturity fair values from a variety of external independent pricing services, including brokers, with access to observable data including recent trade information, if available. In certain circumstances in which an external price is not available for a Level 3 security, we will internally estimate its fair value. Our process for evaluation and selection of the fair values includes: • We follow a “pricing waterfall” policy, which establishes the pricing source preference for a particular security or security type. The order of preference is based on our evaluation of the valuation methods used, the source’s knowledge of the instrument and the reliability of the prices we have received from the source in the past. Our valuation policy dictates that fair values are initially sought from third party pricing services. If our review of the prices received from our preferred source indicates an inaccurate price, we will use an alternative source within the waterfall and document the decision. In the event that fair values are not available from one of our external pricing services or upon review of the fair values provided it is determined that they may not be reflective of market conditions, those securities are submitted to brokers familiar with the security to obtain non-binding price quotes. Broker quotes tend to be used in limited circumstances such as for newly issued, private placement corporate bonds and other instruments that are not widely traded. For those securities for which an externally provided fair value is not available, we use cash flow modeling techniques to estimate fair value. • We evaluate third party pricing source estimation methodologies to assess whether they will provide a fair value that approximates a market exit price. • We perform an overall analysis of portfolio fair value movement against general movements in interest rates and spreads. • We compare period-to-period price trends to detect unexpected price fluctuation based on our knowledge of the market and the particular instrument. As fluctuations are noted, we will perform further research that may include discussions with the original pricing source or other external sources to ensure we are in agreement with the valuation. • We compare prices between different pricing sources for unusual disparity. • We meet at least quarterly with our Investment Committee, the group that oversees our valuation process, to discuss valuation practices and observations during the pricing process. Equity securities: Level 1 equity securities consist of mutual funds that are actively traded, allowing us to use current market prices as an estimate of their fair value. Level 2 equity securities consist of non-redeemable preferred stock. Estimated fair value for the non-redeemable preferred stock is obtained from external pricing sources using a matrix pricing approach. Level 3 equity securities consist of non-redeemable preferred stock for which fair value estimates are based on the value of comparable securities that are actively traded. Increases in spreads used to value comparable companies, will result in a decrease in discounted cash flows used, and accordingly in the estimated fair value of the security. In the case that external pricing services are used for certain Level 1 and Level 2 equity securities, our review process is consistent with the process used to determine the fair value of fixed maturities discussed above. Other investments: Level 2 other investments measured at fair value include call options with fair values based on counterparty market prices adjusted for a credit component of the counterparty, net of collateral received. Cash, cash equivalents and short-term investments: Level 1 cash, cash equivalents and short-term investments are highly liquid instruments for which historical cost approximates fair value. Reinsurance recoverable: Level 2 reinsurance recoverable includes embedded derivatives in our modified coinsurance contracts under which we cede or assume business. Fair values of these embedded derivatives are based on the difference between the fair value and the cost basis of the underlying fixed maturities, which are valued consistent with the discussion of fixed maturities above. Assets held in separate accounts: Level 1 assets held in separate accounts consist of mutual funds that are actively traded, allowing us to use current market prices as an estimate of their fair value. Future policy benefits-indexed product embedded derivatives : Certain annuity contracts include embedded derivatives that are measured at fair value on a recurring basis. These embedded derivatives are a Level 3 measurement. The fair value of the embedded derivatives is based on the discounted excess of projected account values (including a risk margin) over projected guaranteed account values. The key unobservable inputs required in the projection of future values that require management judgment include the risk margin as well as the credit risk of our company. Should the risk margin increase or the credit risk decrease, the discounted cash flows and the estimated fair value of the obligation will increase. Other liabilities: Level 2 other liabilities include the embedded derivatives in our modified coinsurance contracts under which we cede business. Fair values for the embedded derivatives are based on the difference between the fair value and the cost basis of the underlying fixed maturities. Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels June 30, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,342,791 $ 30,470 $ 3,373,261 Residential mortgage-backed securities — 575,529 23,940 599,469 Commercial mortgage-backed securities — 773,606 87,367 860,973 Other asset-backed securities — 767,725 16,299 784,024 United States Government and agencies 8,403 12,957 — 21,360 States and political subdivisions — 1,534,328 — 1,534,328 Total fixed maturities 8,403 7,006,936 158,076 7,173,415 Non-redeemable preferred stocks — 90,269 7,056 97,325 Common stocks (1) 5,395 — — 5,395 Other investments — 14,002 — 14,002 Cash, cash equivalents and short-term investments 38,846 — — 38,846 Reinsurance recoverable — 1,145 — 1,145 Assets held in separate accounts 638,061 — — 638,061 Total assets $ 690,705 $ 7,112,352 $ 165,132 $ 7,968,189 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 32,969 $ 32,969 Other liabilities — 106 — 106 Total liabilities $ — $ 106 $ 32,969 $ 33,075 (1) A private equity fund with a fair value estimate of $1.3 million using net asset value per share as a practical expedient, has not been classified in the fair value hierarchy above per fair value reporting guidance. This fund invests in senior secured middle market loans and has unfunded commitments totaling $8.7 million at June 30, 2018. The investment is not currently eligible for redemption. Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,654,671 $ 33,600 $ 3,688,271 Residential mortgage-backed securities — 507,157 9,124 516,281 Commercial mortgage-backed securities — 619,606 85,701 705,307 Other asset-backed securities — 780,022 53,480 833,502 United States Government and agencies 9,078 15,827 — 24,905 States and political subdivisions — 1,523,701 — 1,523,701 Total fixed maturities 9,078 7,100,984 181,905 7,291,967 Non-redeemable preferred stocks — 92,425 7,407 99,832 Common stocks 4,313 — — 4,313 Other investments — 14,824 — 14,824 Cash, cash equivalents and short-term investments 69,703 — — 69,703 Reinsurance recoverable — 2,125 — 2,125 Assets held in separate accounts 651,963 — — 651,963 Total assets $ 735,057 $ 7,210,358 $ 189,312 $ 8,134,727 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 27,774 $ 27,774 Other liabilities — 268 — 268 Total liabilities $ — $ 268 $ 27,774 $ 28,042 Level 3 Assets by Valuation Source - Recurring Basis June 30, 2018 Third-party vendors Priced Fair Value (Dollars in thousands) Corporate securities $ 2,257 $ 28,213 $ 30,470 Residential mortgage-backed securities 23,940 — 23,940 Commercial mortgage-backed securities 78,376 8,991 87,367 Other asset-backed securities 16,299 — 16,299 Non-redeemable preferred stocks — 7,056 7,056 Total assets $ 120,872 $ 44,260 $ 165,132 Percent of total 73.2 % 26.8 % 100.0 % December 31, 2017 Third-party vendors Priced internally Fair Value (Dollars in thousands) Corporate securities $ 4,555 $ 29,045 $ 33,600 Residential mortgage-backed securities 9,124 — 9,124 Commercial mortgage-backed securities 85,701 — 85,701 Other asset-backed securities 47,080 6,400 53,480 Non-redeemable preferred stocks — 7,407 7,407 Total assets $ 146,460 $ 42,852 $ 189,312 Percent of total 77.4 % 22.6 % 100.0 % Quantitative Information about Level 3 Fair Value Measurements - Recurring Basis June 30, 2018 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 20,376 Discounted cash flow Credit spread 0.98% - 5.52% (3.17%) Commercial mortgage-backed 62,694 Discounted cash flow Credit spread 1.42% - 3.65% (2.34%) Non-redeemable preferred stocks 7,056 Discounted cash flow Credit spread 3.57% (3.57%) Total assets $ 90,126 Liabilities Future policy benefits - indexed product embedded derivatives $ 32,969 Discounted cash flow Credit risk Risk margin 0.60% - 1.75% (1.15%) 0.15% - 0.40% (0.25%) December 31, 2017 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 27,682 Discounted cash flow Credit spread 0.91% - 6.20% (4.17%) Commercial mortgage-backed 72,224 Discounted cash flow Credit spread 1.40% - 4.10% (2.50%) Non-redeemable preferred stocks 7,407 Discounted cash flow Credit spread 2.94% (2.94%) Total assets $ 107,313 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 Discounted cash flow Credit risk Risk margin 0.40% - 1.60% (0.90%) 0.15% - 0.40% (0.25%) The tables above exclude certain securities with the fair value based on non-binding broker quotes for which we could not reasonably obtain the quantitative unobservable inputs. Level 3 Financial Instruments Changes in Fair Value - Recurring Basis June 30, 2018 Realized and unrealized gains (losses), net Balance, December 31, 2017 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, June 30, 2018 (Dollars in thousands) Assets Corporate securities $ 33,600 $ — $ (7,682 ) $ — $ (812 ) $ 7,082 $ (2,000 ) $ 282 $ 30,470 Residential mortgage-backed securities 9,124 23,940 — — — — (9,124 ) — 23,940 Commercial mortgage-backed securities 85,701 35,531 (423 ) — (2,590 ) — (30,826 ) (26 ) 87,367 Other asset-backed securities 53,480 20,255 (2,106 ) — 13 — (55,343 ) — 16,299 Non-redeemable preferred stocks 7,407 — — — (351 ) — — — 7,056 Total assets $ 189,312 $ 79,726 $ (10,211 ) $ — $ (3,740 ) $ 7,082 $ (97,293 ) $ 256 $ 165,132 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 $ 5,226 $ (2,476 ) $ 2,445 $ — $ — $ — $ — $ 32,969 Level 3 Financial Instruments Changes in Fair Value - Recurring Basis June 30, 2017 Realized and unrealized gains (losses), net Balance, December 31, 2016 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, June 30, 2017 (Dollars in thousands) Assets Corporate securities $ 59,119 $ — $ (3,311 ) $ — $ (778 ) $ 4,408 $ (22,877 ) $ (20 ) $ 36,541 Residential mortgage-backed securities — 21,326 — — (1 ) — (15,307 ) 1 6,019 Commercial mortgage-backed securities 81,434 5,723 (394 ) — 6,547 — (14,544 ) (42 ) 78,724 Other asset-backed securities 54,368 63,542 (3,921 ) — 269 10,959 (26,817 ) (12 ) 98,388 Non-redeemable preferred stocks 7,411 — — — 114 — — — 7,525 Total assets $ 202,332 $ 90,591 $ (7,626 ) $ — $ 6,151 $ 15,367 $ (79,545 ) $ (73 ) $ 227,197 Liabilities Future policy benefits - indexed product embedded derivatives $ 15,778 $ 3,566 $ (909 ) $ 3,860 $ — $ — $ — $ — $ 22,295 (1) Transfers into Level 3 represent assets previously priced using an external pricing service with access to observable inputs no longer available and therefore, were priced using non-binding broker quotes. Transfers out of Level 3 include those assets that we are now able to obtain pricing from a third party pricing vendor that uses observable inputs. The fair values of newly issued securities often require additional estimation until a market is created, which is generally within a few months after issuance. Once a market is created, as was the case for the majority of the security transfers out of the Level 3 category above, Level 2 valuation sources become available. There were no transfers between Level 1 and Level 2 during the periods presented above. The Company has other financial assets and financial liabilities that are not carried at fair value but for which fair value disclosure is required. The following table presents the carrying value, fair value and fair value hierarchy level of these financial assets and financial liabilities. Valuation of our Financial Instruments Not Reported at Fair Value by Hierarchy Levels June 30, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value Carrying Value (Dollars in thousands) Assets Mortgage loans $ — $ — $ 979,716 $ 979,716 $ 982,987 Policy loans — — 232,375 232,375 194,838 Other investments — — 31,753 31,753 30,722 Total assets $ — $ — $ 1,243,844 $ 1,243,844 $ 1,208,547 Liabilities Future policy benefits $ — $ — $ 4,010,881 $ 4,010,881 $ 4,261,390 Supplementary contracts without life contingencies — — 308,067 308,067 312,399 Advance premiums and other deposits — — 257,939 257,939 257,939 Short-term debt — — 27,000 27,000 27,000 Long-term debt — — 82,266 82,266 97,000 Liabilities related to separate accounts — — 636,205 636,205 638,061 Total liabilities $ — $ — $ 5,322,358 $ 5,322,358 $ 5,593,789 December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value Carrying Value (Dollars in thousands) Assets Mortgage loans $ — $ — $ 989,503 $ 989,503 $ 971,812 Policy loans — — 236,223 236,223 191,398 Other investments 28,619 28,619 27,547 Total assets $ — $ — $ 1,254,345 $ 1,254,345 $ 1,190,757 Liabilities Future policy benefits $ — $ — $ 4,119,880 $ 4,119,880 $ 4,164,593 Supplementary contracts without life contingencies — — 327,151 327,151 322,630 Advance premiums and other deposits — — 259,099 259,099 259,099 Long-term debt — — 78,628 78,628 97,000 Liabilities related to separate accounts — — 649,610 649,610 651,963 Total liabilities $ — $ — $ 5,434,368 $ 5,434,368 $ 5,495,285 Level 3 Financial Instruments Measured at Fair Value on a Nonrecurring Basis Certain assets are measured at fair value on a nonrecurring basis, generally mortgage loans or real estate that have been deemed to be impaired during the reporting period. There were no mortgage loans or real estate impaired to fair value during the six months ended June 30, 2018 or June 30, 2017 .

Defined Benefit Plan

Defined Benefit Plan	6 Months Ended
	Jun. 30, 2018
Defined Benefit Plan [Abstract]
Defined Benefit Plan	Defined Benefit Plan We participate with affiliates and an unaffiliated organization in defined benefit pension plans, including a multiemployer plan. Our share of net periodic pension cost for the plans is recorded as expense in our consolidated statements of operations. Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Multiemployer Plan Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Service cost $ 1,493 $ 1,388 $ 2,986 $ 2,776 Interest cost 3,410 3,531 6,821 7,062 Expected return on assets (5,562 ) (4,796 ) (11,124 ) (9,592 ) Amortization of prior service cost 12 33 23 66 Amortization of actuarial loss 3,127 2,530 6,254 5,060 Net periodic pension cost $ 2,480 $ 2,686 $ 4,960 $ 5,372 FBL Financial Group, Inc. share of net periodic pension costs $ 760 $ 851 $ 1,520 $ 1,702 Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Other Plans Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Service cost $ 134 $ 109 $ 269 $ 218 Interest cost 239 251 479 502 Amortization of actuarial loss 339 293 677 586 Net periodic pension cost $ 712 $ 653 $ 1,425 $ 1,306 FBL Financial Group, Inc. share of net periodic pension costs $ 417 $ 388 $ 835 $ 776

Income Taxes Level 1 (Notes)

Income Taxes Level 1 (Notes)	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Tax	Income Taxes The Tax Act made broad changes to the U.S. tax code impacting our companies, including reducing the federal corporate tax rate from 35% to 21% and numerous base-broadening provisions. We recorded a provisional estimate of the impact of the Tax Act on our deferred tax assets and liabilities as of December 31, 2017. As of June 30, 2018, little guidance regarding the Tax Act has been issued and a number of the Tax Act’s provisions still contain some level of uncertainty. Our income tax provisions and deferred income taxes at June 30, 2018 reflect the lower corporate tax rate and the other provisions of the Tax Act, based on our current understanding of the legislation. Certain provisional estimates used in the determination of deferred tax assets and liabilities at December 31, 2017 have been updated during the first six months of 2018, including the determination of the 8-year transition liability related to tax reserves. The adjustments to these estimates only affected the classification of items on the balance sheet and did not impact net income for the first six months of 2018 or total equity as of June 30, 2018. As additional guidance and information is provided, these estimates will continue to be updated as needed.

Credit Arrangements Level 1 (No

Credit Arrangements Level 1 (Notes)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Debt Disclosure	Credit Arrangements Short-term debt as of June 30, 2018 consists of two short-term advances, collateralized by fixed maturity securities, payable to FHLB totaling $27.0 million . The advances included an $8.0 million advance on June 29, 2018 that was paid off on July 2, 2018, with an interest rate of 2.10% and a $19.0 million advance on June 29, 2018 that was paid off on July 16, 2018, with a weighted average interest rate of 2.13% .

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Proceedings In the normal course of business, we may be involved in litigation in which damages are alleged that are substantially in excess of contractual policy benefits or certain other agreements. In recent years, companies in the life insurance and annuity business have faced litigation, including class action lawsuits, alleging improper product design, improper sales practices and similar claims. We are not aware of any claims threatened or pending against FBL Financial Group, Inc. or any of its subsidiaries for which a material loss is reasonably possible.

Stockholders Equity

Stockholders Equity	6 Months Ended
	Jun. 30, 2018
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note	Stockholders’ Equity Share Repurchases We periodically repurchase our Class A common stock under programs approved by our Board of Directors. These repurchase programs authorize us to make repurchases in the open market or through privately negotiated transactions, with the timing and terms of the purchases to be determined by management based on market conditions. Under these programs, we repurchased 129,011 shares for $8.8 million during the six months ended June 30, 2018 . No repurchases were made during the six months ended June 30, 2017 . Completion of the current program is dependent on market conditions and other factors. There is no guarantee as to the exact timing of any repurchases or the number of shares that we will repurchase. The share repurchase program may be modified or terminated at any time without prior notice. At June 30, 2018 , $48.0 million remains available for repurchase under the active repurchase program. Special Dividends In March 2018, the Board of Directors approved a special $1.50 per share cash dividend payable to Class A and Class B common shareholders totaling $37.3 million . In March 2017, the Board of Directors approved a special $1.50 per share cash dividend payable to Class A and Class B common shareholders totaling $37.4 million . Reconciliation of Outstanding Common Stock Class A Class B Total Shares Dollars Shares Dollars Shares Dollars (Dollars in thousands) Outstanding at January 1, 2017 24,882,542 $ 152,903 11,413 $ 72 24,893,955 $ 152,975 Issuance of common stock under compensation plans 34,613 440 — — 34,613 440 Outstanding at June 30, 2017 24,917,155 $ 153,343 11,413 $ 72 24,928,568 $ 153,415 Outstanding at January 1, 2018 24,919,113 $ 153,589 11,413 $ 72 24,930,526 $ 153,661 Issuance of common stock under compensation plans 16,694 320 — — 16,694 320 Purchase of common stock (129,011 ) (795 ) — — (129,011 ) (795 ) Outstanding at June 30, 2018 24,806,796 $ 153,114 11,413 $ 72 24,818,209 $ 153,186 Accumulated Other Comprehensive Income, Net of Tax and Other Offsets Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Balance at January 1, 2017 $ 156,963 $ 311 $ (7,719 ) $ 149,555 Other comprehensive income before reclassifications 61,285 1,201 — 62,486 Reclassification adjustments (55 ) — 371 316 Balance at June 30, 2017 $ 218,193 $ 1,512 $ (7,348 ) $ 212,357 Balance at January 1, 2018 $ 295,169 $ 537 $ (10,723 ) $ 284,983 Net unrealized gains on equity securities (2) (5,480 ) — — (5,480 ) Other comprehensive income (loss) before reclassifications (149,645 ) 2,118 — (147,527 ) Reclassification adjustments (1,424 ) — 529 (895 ) Balance at June 30, 2018 $ 138,620 $ 2,655 $ (10,194 ) $ 131,081 (1) Includes the impact of taxes, deferred acquisition costs, value of insurance in force acquired, unearned revenue reserves and policyholder liabilities. See Note 2 to our consolidated financial statements for further information. (2) See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change. Accumulated Other Comprehensive Income Reclassification Adjustments Six months ended June 30, 2018 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital gains on sales of investments $ (1,795 ) $ — $ — $ (1,795 ) Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities (8 ) — — (8 ) Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 668 668 Reclassifications before income taxes (1,803 ) — 668 (1,135 ) Income taxes 379 — (139 ) 240 Reclassification adjustments $ (1,424 ) $ — $ 529 $ (895 ) Accumulated Other Comprehensive Income Reclassification Adjustments Six months ended June 30, 2017 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital losses on sales of investments $ (174 ) $ — $ — $ (174 ) Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities 89 — — 89 Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 571 571 Reclassifications before income taxes (85 ) — 571 486 Income taxes 30 — (200 ) (170 ) Reclassification adjustments $ (55 ) $ — $ 371 $ 316 (1) See Note 2 to our consolidated financial statements for further information.

Earnings per Share

Earnings per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Share	Earnings per Share Computation of Earnings per Common Share Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands, except per share data) Numerator: Net income attributable to FBL Financial Group, Inc. $ 32,428 $ 32,291 $ 56,059 $ 58,724 Less: Dividends on Series B preferred stock 37 37 75 75 Income available to common stockholders $ 32,391 $ 32,254 $ 55,984 $ 58,649 Denominator: Weighted average shares - basic 24,916,597 25,031,312 24,960,391 25,033,307 Effect of dilutive securities - stock-based compensation 12,903 19,663 14,405 20,777 Weighted average shares - diluted 24,929,500 25,050,975 24,974,796 25,054,084 Earnings per common share $ 1.30 $ 1.29 $ 2.24 $ 2.34 Earnings per common share - assuming dilution: $ 1.30 $ 1.29 $ 2.24 $ 2.34 There were no antidilutive stock options outstanding in any of the periods presented.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Information [Abstract]
Segment Information	Segment Information We analyze operations by reviewing financial information regarding our primary products that are aggregated into the Annuity and Life Insurance product segments. In addition, our Corporate and Other segment includes various support operations, corporate capital and other product lines that are not currently underwritten by the Company. We use non-GAAP operating income (a measure of earnings not recognized under GAAP), in addition to net income, to measure our performance. Non-GAAP operating income, for the periods presented, consists of net income adjusted to exclude the initial impact of changes in federal statutory income tax rates and tax laws, realized gains and losses on investments, and the change in net unrealized gains and losses on derivatives and equity securities, which can fluctuate greatly from period to period. These fluctuations make it difficult to analyze core operating trends. In addition, for derivatives not designated as hedges, there is a mismatch between the valuation of the asset and liability when deriving net income (loss). Specifically, call options relating to our indexed business are one-year assets while the embedded derivatives in the indexed contracts represent the rights of the contract holder to receive index credits over the entire period the indexed products are expected to be in force. Non-GAAP operating income is not a measure used in financial statements prepared in accordance with GAAP, but is a common life insurance industry measure of performance. We use non-GAAP operating income for goal setting, determining short-term incentive compensation and evaluating performance on a basis comparable to that used by many in the investment community. We analyze our segment results based on pre-tax non-GAAP operating income. Accordingly, income taxes are not allocated to the segments. In addition, non-GAAP operating results are reported net of transactions between the segments. Adjustments to net income are net of amortization of unearned revenue reserves, deferred acquisition costs and value of insurance in force acquired, as well as changes in interest sensitive product reserves and income taxes attributable to these items. While not applicable for the periods reported herein, our non-GAAP operating income policy also calls for adjustments to net income relating to the following: • settlements or judgments arising from lawsuits, net of any recoveries from third parties, • the cumulative effect of changes in accounting principles and • discontinued operations. Reconciliation Between Net Income and Non-GAAP Operating Income Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Net income attributable to FBL Financial Group, Inc. $ 32,428 $ 32,291 $ 56,059 $ 58,724 Net income adjustments: Initial impact of the Tax Act (1) 754 — 1,823 — Net realized gains/losses on investments (2) (3) (295 ) (788 ) 2,129 (234 ) Change in net unrealized gains/losses on derivatives (2) (194 ) (686 ) 315 (685 ) Non-GAAP operating income $ 32,693 $ 30,817 $ 60,326 $ 57,805 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. See Note 2 to our consolidated financial statements for further information. (2) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (3) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information. Financial Information Concerning our Operating Segments Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Pre-tax non-GAAP operating income: Annuity $ 15,998 $ 18,174 $ 32,580 $ 34,595 Life Insurance 16,381 17,631 27,278 31,380 Corporate and Other 3,084 4,195 4,965 8,357 Total pre-tax non-GAAP operating income 35,463 40,000 64,823 74,332 Income taxes on non-GAAP operating income (2,770 ) (9,183 ) (4,497 ) (16,527 ) Non-GAAP operating income $ 32,693 $ 30,817 $ 60,326 $ 57,805 Non-GAAP operating revenues: Annuity $ 56,415 $ 56,833 $ 113,850 $ 111,884 Life Insurance 109,581 107,068 217,308 211,211 Corporate and Other 23,869 24,104 47,980 47,770 189,865 188,005 379,138 370,865 Net realized gains/losses on investments (1) (2) 340 794 (2,886 ) 313 Change in net unrealized gains/losses on derivatives (1) (260 ) 198 (4,132 ) (261 ) Consolidated revenues $ 189,945 $ 188,997 $ 372,120 $ 370,917 (1) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (2) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information. Interest expense is attributable to the Corporate and Other segment. Expenditures for long-lived assets were not significant during the periods presented above. Goodwill at June 30, 2018 and December 31, 2017 was allocated among the segments as follows: Annuity ( $3.9 million ) and Life Insurance ( $6.1 million ). Securities and indebtedness of related parties is attributable to the Life Insurance and Corporate and Other segments. The following chart provides the related equity income (loss) by segment. Equity Income (Loss) by Operating Segment Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Pre-tax equity income (loss): Life Insurance $ 1,292 $ 1,289 $ 1,987 $ 2,455 Corporate and Other (2,200 ) (2,279 ) (3,711 ) (3,903 ) (908 ) (990 ) (1,724 ) (1,448 ) Income taxes 3,749 3,914 7,489 7,603 Equity income, net of related taxes, included in non-GAAP operating income 2,841 2,924 5,765 6,155 LIHTC equity losses related to the enactment of the Tax Act (1) (754 ) — $ (1,823 ) $ — Equity income, net of related income taxes $ 2,087 $ 2,924 $ 3,942 $ 6,155 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. Such investments are accounted for under the equity method of accounting with income/loss recorded in arrears. See Note 2 to our consolidated financial statements for further information. Premiums collected, which is not a measure used in financial statements prepared according to GAAP, includes premiums received on life insurance policies and deposits on annuities and universal life-type products. Premiums collected is a common life insurance industry measure of agent productivity. Net premiums collected totaled $171.4 million for the quarter ended June 30, 2018 and $165.9 million for the same period in 2017 . Net premiums collected totaled $341.0 million for the six months ended June 30, 2018 and $335.7 million for the same period in 2017 . Under GAAP, premiums on whole life and term life policies are recognized as revenues over the premium-paying period and reported in the Life Insurance segment. The following chart provides a reconciliation of life insurance premiums collected to those reported in the GAAP financial statements. Reconciliation of Traditional Life Insurance Premiums, Net of Reinsurance Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Traditional and universal life insurance premiums collected $ 77,900 $ 75,162 $ 154,163 $ 148,735 Premiums collected on interest sensitive products (27,849 ) (26,164 ) (54,431 ) (50,879 ) Traditional life insurance premiums collected 50,051 48,998 99,732 97,856 Change in due premiums and other 1,040 1,264 856 840 Traditional life insurance premiums as included in the Consolidated Statements of Operations $ 51,091 $ 50,262 $ 100,588 $ 98,696 There is no comparable GAAP financial measure for premiums collected on annuities and universal life-type products. GAAP revenues for those interest sensitive and variable products consist of various policy charges and fees assessed on those contracts, as summarized in the chart below. Interest Sensitive Product Charges by Segment Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Annuity Surrender charges and other $ 1,217 $ 1,202 $ 2,419 $ 2,337 Life Insurance Administration charges $ 4,194 $ 3,899 $ 8,240 $ 7,764 Cost of insurance charges 12,681 12,369 25,218 24,404 Surrender charges 568 469 1,249 994 Amortization of policy initiation fees 1,141 620 1,755 1,284 Total $ 18,584 $ 17,357 $ 36,462 $ 34,446 Corporate and Other Administration charges $ 1,325 $ 1,377 $ 2,641 $ 2,802 Cost of insurance charges 7,195 7,269 14,335 14,594 Surrender charges 20 27 43 79 Separate account charges 2,165 2,027 4,310 4,029 Amortization of policy initiation fees 400 197 794 370 Total $ 11,105 $ 10,897 $ 22,123 $ 21,874 Interest sensitive product charges as included in the Consolidated Statements of Operations $ 30,906 $ 29,456 $ 61,004 $ 58,657

Investment Operations (Tables)

Investment Operations (Tables)	6 Months Ended
	Jun. 30, 2018
Investment Operations [Abstract]
Available-for-sale Securities [Table Text Block]	Available-For-Sale Fixed Maturity Securities by Investment Category June 30, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,259,368 $ 169,981 $ (56,088 ) $ 3,373,261 $ — Residential mortgage-backed 577,566 29,353 (7,450 ) 599,469 1,788 Commercial mortgage-backed 863,195 19,067 (21,289 ) 860,973 — Other asset-backed 770,178 17,452 (3,606 ) 784,024 1,573 United States Government and agencies 20,491 1,099 (230 ) 21,360 — States and political subdivisions 1,431,707 106,026 (3,405 ) 1,534,328 — Total fixed maturities $ 6,922,505 $ 342,978 $ (92,068 ) $ 7,173,415 $ 3,361 Available-For-Sale Fixed Maturity and Equity Securities by Investment Category December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,374,927 $ 329,299 $ (15,955 ) $ 3,688,271 $ (504 ) Residential mortgage-backed 483,671 35,890 (3,280 ) 516,281 339 Commercial mortgage-backed 674,076 34,464 (3,233 ) 705,307 — Other asset-backed 818,071 18,645 (3,214 ) 833,502 845 United States Government and agencies 23,378 1,606 (79 ) 24,905 — States and political subdivisions 1,383,127 141,813 (1,239 ) 1,523,701 — Total fixed maturities $ 6,757,250 $ 561,717 $ (27,000 ) $ 7,291,967 $ 680 Equity securities: Non-redeemable preferred stocks $ 92,951 $ 7,146 $ (265 ) $ 99,832 Common stocks 3,764 549 — 4,313 Total equity securities $ 96,715 $ 7,695 $ (265 ) $ 104,145 (1) Non-credit losses subsequent to the initial impairment measurement date on other-than-temporary impairment (OTTI) losses are included in the gross unrealized gains and gross unrealized losses columns above. The non-credit loss component of OTTI losses for residential mortgage-backed and other asset-backed securities at June 30, 2018 and December 31, 2017 were in an unrealized gain position due to increases in estimated fair value subsequent to initial recognition of non-credit losses on such securities. (2) Corporate securities include hybrid preferred securities with a fair value of $13.7 million at June 30, 2018 and $17.5 million at December 31, 2017 . Corporate securities also include redeemable preferred stock with a fair value of $20.6 million at June 30, 2018 and $21.7 million at December 31, 2017 .
Investments Classified by Contractual Maturity Date [Table Text Block]	Available-For-Sale Fixed Maturities by Maturity Date June 30, 2018 Amortized Cost Fair Value (Dollars in thousands) Due in one year or less $ 129,205 $ 132,022 Due after one year through five years 547,317 566,723 Due after five years through ten years 713,103 727,046 Due after ten years 3,321,941 3,503,158 4,711,566 4,928,949 Mortgage-backed and other asset-backed 2,210,939 2,244,466 Total fixed maturities $ 6,922,505 $ 7,173,415
Unrealized Gain (Loss) on Investments [Table Text Block]	Net Unrealized Gains on Investments in Accumulated Other Comprehensive Income June 30, December 31, (Dollars in thousands) Net unrealized appreciation on: Fixed maturities - available for sale $ 250,910 $ 534,718 Equity securities - available for sale — 7,430 250,910 542,148 Adjustments for assumed changes in amortization pattern of: Deferred acquisition costs (65,530 ) (147,173 ) Value of insurance in force acquired (9,459 ) (14,870 ) Unearned revenue reserve 7,108 12,705 Adjustments for assumed changes in policyholder liabilities (4,199 ) (18,499 ) Provision for deferred income taxes (37,555 ) (78,605 ) Net unrealized investment gains $ 141,275 $ 295,706
Schedule of Unrealized Loss on Investments [Table Text Block]	Fixed Maturity Securities with Unrealized Losses by Length of Time June 30, 2018 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 927,826 $ (36,269 ) $ 164,984 $ (19,819 ) $ 1,092,810 $ (56,088 ) 60.9 % Residential mortgage-backed 245,127 (6,475 ) 27,229 (975 ) 272,356 (7,450 ) 8.1 Commercial mortgage-backed 442,114 (18,046 ) 29,415 (3,243 ) 471,529 (21,289 ) 23.1 Other asset-backed 299,747 (2,234 ) 67,874 (1,372 ) 367,621 (3,606 ) 3.9 United States Government and agencies 5,010 (180 ) 1,846 (50 ) 6,856 (230 ) 0.3 States and political subdivisions 103,189 (1,829 ) 17,393 (1,576 ) 120,582 (3,405 ) 3.7 Total fixed maturities $ 2,023,013 $ (65,033 ) $ 308,741 $ (27,035 ) $ 2,331,754 $ (92,068 ) 100.0 % Fixed Maturity and Equity Securities with Unrealized Losses by Length of Time December 31, 2017 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 85,019 $ (1,261 ) $ 183,820 $ (14,694 ) $ 268,839 $ (15,955 ) 59.1 % Residential mortgage-backed 76,393 (1,757 ) 31,779 (1,523 ) 108,172 (3,280 ) 12.1 Commercial mortgage-backed 151,158 (2,078 ) 16,398 (1,155 ) 167,556 (3,233 ) 12.0 Other asset-backed 159,111 (2,006 ) 71,064 (1,208 ) 230,175 (3,214 ) 11.9 United States Government and agencies 5,698 (47 ) 1,864 (32 ) 7,562 (79 ) 0.3 States and political subdivisions 5,904 (96 ) 20,505 (1,143 ) 26,409 (1,239 ) 4.6 Total fixed maturities $ 483,283 $ (7,245 ) $ 325,430 $ (19,755 ) $ 808,713 $ (27,000 ) 100.0 % Equity securities: Non-redeemable preferred stocks $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 ) Total equity securities $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 )
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]	Credit Loss Component of Other-Than-Temporary Impairments on Fixed Maturities Six months ended June 30, 2018 2017 (Dollars in thousands) Balance at beginning of period $ (12,392 ) $ (14,500 ) Reductions due to investments sold or paid down 3,369 829 Reduction for credit loss that no longer has a portion of the OTTI loss recognized in other comprehensive income 2,529 587 Balance at end of period $ (6,494 ) $ (13,084 )
Realized Gain (Loss) on Investments [Table Text Block]	Realized Gains (Losses) - Recorded in Income Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Realized gains (losses) on sales of investments Fixed maturities: Gross gains $ 1,713 $ 1,081 $ 1,796 $ 1,205 Gross losses (1 ) (414 ) (1 ) (941 ) Equity securities — (90 ) — (90 ) Other long-term investments (5 ) 40 (18 ) 40 Real estate — 304 — 304 1,707 921 1,777 518 Net unrealized losses recognized during the period on equity securities held at the end of the period (1) (866 ) — (2,683 ) — Net realized gains (losses) 841 921 (906 ) 518 Impairment losses recognized in earnings: Other credit-related (2) (504 ) — (1,799 ) (66 ) Net realized gains (losses) on investments recorded in income $ 337 $ 921 $ (2,705 ) $ 452 (1) See Note 1 to our consolidated financial statements for discussion of change in accounting policy for equity securities during the quarter. (2) Amount represents credit-related losses for fixed maturities written down to fair value through income and impairment losses related to investments accounted for under the equity method of accounting, which are included in securities and indebtedness of related parties within our consolidated balance sheets.
Mortgage Loans by Colateral Type [Table Text Block]	Mortgage Loans by Collateral Type June 30, 2018 December 31, 2017 Collateral Type Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) Office $ 415,920 42.3 % $ 410,090 42.2 % Retail 295,997 30.1 292,257 30.1 Industrial 208,815 21.2 207,180 21.3 Other 62,255 6.4 62,285 6.4 Total $ 982,987 100.0 % $ 971,812 100.0 %
Mortgage Loans by Geograpic Location [Table Text Block]	Mortgage Loans by Geographic Location within the United States June 30, 2018 December 31, 2017 Region of the United States Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) South Atlantic $ 278,061 28.3 % $ 296,947 30.5 % Pacific 155,917 15.9 146,320 15.0 West North Central 124,177 12.6 127,096 13.1 Mountain 103,331 10.5 105,627 10.9 East North Central 102,597 10.4 91,971 9.5 West South Central 92,322 9.4 85,566 8.8 East South Central 66,063 6.7 67,228 6.9 New England 34,286 3.5 35,005 3.6 Middle Atlantic 26,233 2.7 16,052 1.7 Total $ 982,987 100.0 % $ 971,812 100.0 %
Mortgage Loans by loan to value ratio [Table Text Block]	Mortgage Loans by Loan-to-Value Ratio June 30, 2018 December 31, 2017 Loan-to-Value Ratio Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 0% - 50% $ 381,586 38.8 % $ 334,037 34.4 % 51% - 60% 250,732 25.5 258,359 26.6 61% - 70% 310,805 31.6 297,404 30.6 71% - 80% 21,212 2.2 63,116 6.5 81% - 90% 18,652 1.9 18,896 1.9 Total $ 982,987 100.0 % $ 971,812 100.0 %
Mortgage loans by year of origination [Table Text Block]	Mortgage Loans by Year of Origination June 30, 2018 December 31, 2017 Year of Origination Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 2018 $ 46,500 4.6 % $ — — % 2017 211,055 21.5 214,365 22.1 2016 151,923 15.5 154,359 15.9 2015 135,616 13.8 144,890 14.9 2014 76,363 7.8 77,866 8.0 2013 and prior 361,530 36.8 380,332 39.1 Total $ 982,987 100.0 % $ 971,812 100.0 %
Impaired Financing Receivables [Table Text Block]	Impaired Mortgage Loans June 30, 2018 December 31, 2017 (Dollars in thousands) Unpaid principal balance $ 18,826 $ 19,027 Less: Related allowance (397 ) (497 ) Carrying value of impaired mortgage loans $ 18,429 $ 18,530
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Allowance on Mortgage Loans Six months ended June 30, 2018 2017 (Dollars in thousands) Balance at beginning of period $ 497 $ 713 Recoveries (100 ) (98 ) Balance at end of period $ 397 $ 615
Affordable Housing Program [Text Block]	LIHTC Equity Income (Loss), Net of Related Income Taxes Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Equity losses from LIHTC $ (3,304 ) $ (2,938 ) $ (6,309 ) $ (4,743 ) Income tax benefits: Tax benefits from equity losses 694 1,028 1,325 1,660 Investment tax credits 3,558 3,568 7,127 7,097 Equity income from LIHTC, net of related income tax benefits $ 948 $ 1,658 $ 2,143 $ 4,014 At June 30, 2018 , we had committed to provide additional funds for limited partnerships and limited liability companies in which we invest. The amounts of these unfunded commitments totaled $43.4 million , including $1.6 million for LIHTC commitments, which are summarized by year in the following table. LIHTC Commitments by Year June 30, 2018 (Dollars in thousands) 2018 $ 472 2019 248 2020-2025 884 Total $ 1,604
Schedule of Variable Interest Entities [Table Text Block]	VIE Investments by Category June 30, 2018 December 31, 2017 Carrying Value Maximum Exposure to Loss Carrying Value Maximum Exposure to Loss (Dollars in thousands) LIHTC $ 75,374 $ 76,978 $ 82,417 $ 84,103 Investment companies 31,300 62,706 25,335 62,372 Real estate limited partnerships 9,317 19,463 8,589 20,590 Other 724 918 1,182 1,488 Total $ 116,715 $ 160,065 $ 117,523 $ 168,553
Schedule of Derivative Instruments [Table Text Block]	Derivatives Instruments by Type June 30, 2018 December 31, 2017 (Dollars in thousands) Assets Freestanding derivatives: Call options (reported in other investments) $ 14,002 $ 14,824 Embedded derivatives: Modified coinsurance (reported in reinsurance recoverable) 1,145 2,125 Interest-only security (reported in fixed maturities) 1,624 2,096 Total assets $ 16,771 $ 19,045 Liabilities Embedded derivatives: Indexed annuity and universal life products (reported in liability for future policy benefits) $ 32,969 $ 27,774 Modified coinsurance agreements (reported in other liabilities) 106 268 Total liabilities $ 33,075 $ 28,042 Derivative Income (Loss) Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Change in fair value of free standing derivatives: Call options $ 2,193 $ 1,400 $ 1,041 $ 3,765 Change in fair value of embedded derivatives: Modified coinsurance agreements 125 (12 ) (818 ) (1,422 ) Interest-only security (44 ) (174 ) (79 ) (195 ) Indexed annuity and universal life products 281 (91 ) 2,945 318 Total income from derivatives $ 2,555 $ 1,123 $ 3,089 $ 2,466

Fair Values (Tables)

Fair Values (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Values [Abstract]
Valuation of our Financial Instruments Measured on Recurring Basis by hierarchy levels [Table Text Block]	Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels June 30, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,342,791 $ 30,470 $ 3,373,261 Residential mortgage-backed securities — 575,529 23,940 599,469 Commercial mortgage-backed securities — 773,606 87,367 860,973 Other asset-backed securities — 767,725 16,299 784,024 United States Government and agencies 8,403 12,957 — 21,360 States and political subdivisions — 1,534,328 — 1,534,328 Total fixed maturities 8,403 7,006,936 158,076 7,173,415 Non-redeemable preferred stocks — 90,269 7,056 97,325 Common stocks (1) 5,395 — — 5,395 Other investments — 14,002 — 14,002 Cash, cash equivalents and short-term investments 38,846 — — 38,846 Reinsurance recoverable — 1,145 — 1,145 Assets held in separate accounts 638,061 — — 638,061 Total assets $ 690,705 $ 7,112,352 $ 165,132 $ 7,968,189 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 32,969 $ 32,969 Other liabilities — 106 — 106 Total liabilities $ — $ 106 $ 32,969 $ 33,075 (1) A private equity fund with a fair value estimate of $1.3 million using net asset value per share as a practical expedient, has not been classified in the fair value hierarchy above per fair value reporting guidance. This fund invests in senior secured middle market loans and has unfunded commitments totaling $8.7 million at June 30, 2018. The investment is not currently eligible for redemption. Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,654,671 $ 33,600 $ 3,688,271 Residential mortgage-backed securities — 507,157 9,124 516,281 Commercial mortgage-backed securities — 619,606 85,701 705,307 Other asset-backed securities — 780,022 53,480 833,502 United States Government and agencies 9,078 15,827 — 24,905 States and political subdivisions — 1,523,701 — 1,523,701 Total fixed maturities 9,078 7,100,984 181,905 7,291,967 Non-redeemable preferred stocks — 92,425 7,407 99,832 Common stocks 4,313 — — 4,313 Other investments — 14,824 — 14,824 Cash, cash equivalents and short-term investments 69,703 — — 69,703 Reinsurance recoverable — 2,125 — 2,125 Assets held in separate accounts 651,963 — — 651,963 Total assets $ 735,057 $ 7,210,358 $ 189,312 $ 8,134,727 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 27,774 $ 27,774 Other liabilities — 268 — 268 Total liabilities $ — $ 268 $ 27,774 $ 28,042
Level 3 fixed maturities on Measurement on Recurring Basis by Valuation Technique [Table Text Block]	Level 3 Assets by Valuation Source - Recurring Basis June 30, 2018 Third-party vendors Priced Fair Value (Dollars in thousands) Corporate securities $ 2,257 $ 28,213 $ 30,470 Residential mortgage-backed securities 23,940 — 23,940 Commercial mortgage-backed securities 78,376 8,991 87,367 Other asset-backed securities 16,299 — 16,299 Non-redeemable preferred stocks — 7,056 7,056 Total assets $ 120,872 $ 44,260 $ 165,132 Percent of total 73.2 % 26.8 % 100.0 % December 31, 2017 Third-party vendors Priced internally Fair Value (Dollars in thousands) Corporate securities $ 4,555 $ 29,045 $ 33,600 Residential mortgage-backed securities 9,124 — 9,124 Commercial mortgage-backed securities 85,701 — 85,701 Other asset-backed securities 47,080 6,400 53,480 Non-redeemable preferred stocks — 7,407 7,407 Total assets $ 146,460 $ 42,852 $ 189,312 Percent of total 77.4 % 22.6 % 100.0 %
Quantitative Information about Level 3 Fair Value Measurement Inputs [Text Block]	Quantitative Information about Level 3 Fair Value Measurements - Recurring Basis June 30, 2018 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 20,376 Discounted cash flow Credit spread 0.98% - 5.52% (3.17%) Commercial mortgage-backed 62,694 Discounted cash flow Credit spread 1.42% - 3.65% (2.34%) Non-redeemable preferred stocks 7,056 Discounted cash flow Credit spread 3.57% (3.57%) Total assets $ 90,126 Liabilities Future policy benefits - indexed product embedded derivatives $ 32,969 Discounted cash flow Credit risk Risk margin 0.60% - 1.75% (1.15%) 0.15% - 0.40% (0.25%) December 31, 2017 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 27,682 Discounted cash flow Credit spread 0.91% - 6.20% (4.17%) Commercial mortgage-backed 72,224 Discounted cash flow Credit spread 1.40% - 4.10% (2.50%) Non-redeemable preferred stocks 7,407 Discounted cash flow Credit spread 2.94% (2.94%) Total assets $ 107,313 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 Discounted cash flow Credit risk Risk margin 0.40% - 1.60% (0.90%) 0.15% - 0.40% (0.25%)
Level 3 Financial Instruments Changes in Fair Value [Table Text Block]	Level 3 Financial Instruments Changes in Fair Value - Recurring Basis June 30, 2018 Realized and unrealized gains (losses), net Balance, December 31, 2017 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, June 30, 2018 (Dollars in thousands) Assets Corporate securities $ 33,600 $ — $ (7,682 ) $ — $ (812 ) $ 7,082 $ (2,000 ) $ 282 $ 30,470 Residential mortgage-backed securities 9,124 23,940 — — — — (9,124 ) — 23,940 Commercial mortgage-backed securities 85,701 35,531 (423 ) — (2,590 ) — (30,826 ) (26 ) 87,367 Other asset-backed securities 53,480 20,255 (2,106 ) — 13 — (55,343 ) — 16,299 Non-redeemable preferred stocks 7,407 — — — (351 ) — — — 7,056 Total assets $ 189,312 $ 79,726 $ (10,211 ) $ — $ (3,740 ) $ 7,082 $ (97,293 ) $ 256 $ 165,132 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 $ 5,226 $ (2,476 ) $ 2,445 $ — $ — $ — $ — $ 32,969 Level 3 Financial Instruments Changes in Fair Value - Recurring Basis June 30, 2017 Realized and unrealized gains (losses), net Balance, December 31, 2016 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, June 30, 2017 (Dollars in thousands) Assets Corporate securities $ 59,119 $ — $ (3,311 ) $ — $ (778 ) $ 4,408 $ (22,877 ) $ (20 ) $ 36,541 Residential mortgage-backed securities — 21,326 — — (1 ) — (15,307 ) 1 6,019 Commercial mortgage-backed securities 81,434 5,723 (394 ) — 6,547 — (14,544 ) (42 ) 78,724 Other asset-backed securities 54,368 63,542 (3,921 ) — 269 10,959 (26,817 ) (12 ) 98,388 Non-redeemable preferred stocks 7,411 — — — 114 — — — 7,525 Total assets $ 202,332 $ 90,591 $ (7,626 ) $ — $ 6,151 $ 15,367 $ (79,545 ) $ (73 ) $ 227,197 Liabilities Future policy benefits - indexed product embedded derivatives $ 15,778 $ 3,566 $ (909 ) $ 3,860 $ — $ — $ — $ — $ 22,295 (1) Transfers into Level 3 represent assets previously priced using an external pricing service with access to observable inputs no longer available and therefore, were priced using non-binding broker quotes. Transfers out of Level 3 include those assets that we are now able to obtain pricing from a third party pricing vendor that uses observable inputs. The fair values of newly issued securities often require additional estimation until a market is created, which is generally within a few months after issuance. Once a market is created, as was the case for the majority of the security transfers out of the Level 3 category above, Level 2 valuation sources become available. There were no transfers between Level 1 and Level 2 during the periods presented above.
Financial Instruments Not Reported at Value [Table Text Block]	Valuation of our Financial Instruments Not Reported at Fair Value by Hierarchy Levels June 30, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value Carrying Value (Dollars in thousands) Assets Mortgage loans $ — $ — $ 979,716 $ 979,716 $ 982,987 Policy loans — — 232,375 232,375 194,838 Other investments — — 31,753 31,753 30,722 Total assets $ — $ — $ 1,243,844 $ 1,243,844 $ 1,208,547 Liabilities Future policy benefits $ — $ — $ 4,010,881 $ 4,010,881 $ 4,261,390 Supplementary contracts without life contingencies — — 308,067 308,067 312,399 Advance premiums and other deposits — — 257,939 257,939 257,939 Short-term debt — — 27,000 27,000 27,000 Long-term debt — — 82,266 82,266 97,000 Liabilities related to separate accounts — — 636,205 636,205 638,061 Total liabilities $ — $ — $ 5,322,358 $ 5,322,358 $ 5,593,789 December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Fair Value Carrying Value (Dollars in thousands) Assets Mortgage loans $ — $ — $ 989,503 $ 989,503 $ 971,812 Policy loans — — 236,223 236,223 191,398 Other investments 28,619 28,619 27,547 Total assets $ — $ — $ 1,254,345 $ 1,254,345 $ 1,190,757 Liabilities Future policy benefits $ — $ — $ 4,119,880 $ 4,119,880 $ 4,164,593 Supplementary contracts without life contingencies — — 327,151 327,151 322,630 Advance premiums and other deposits — — 259,099 259,099 259,099 Long-term debt — — 78,628 78,628 97,000 Liabilities related to separate accounts — — 649,610 649,610 651,963 Total liabilities $ — $ — $ 5,434,368 $ 5,434,368 $ 5,495,285

Defined Benefit Plan (Tables)

Defined Benefit Plan (Tables)	6 Months Ended
	Jun. 30, 2018
Defined Benefit Plan [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Multiemployer Plan Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Service cost $ 1,493 $ 1,388 $ 2,986 $ 2,776 Interest cost 3,410 3,531 6,821 7,062 Expected return on assets (5,562 ) (4,796 ) (11,124 ) (9,592 ) Amortization of prior service cost 12 33 23 66 Amortization of actuarial loss 3,127 2,530 6,254 5,060 Net periodic pension cost $ 2,480 $ 2,686 $ 4,960 $ 5,372 FBL Financial Group, Inc. share of net periodic pension costs $ 760 $ 851 $ 1,520 $ 1,702 Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Other Plans Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Service cost $ 134 $ 109 $ 269 $ 218 Interest cost 239 251 479 502 Amortization of actuarial loss 339 293 677 586 Net periodic pension cost $ 712 $ 653 $ 1,425 $ 1,306 FBL Financial Group, Inc. share of net periodic pension costs $ 417 $ 388 $ 835 $ 776

Stockholders Equity (Tables)

Stockholders Equity (Tables)	6 Months Ended
	Jun. 30, 2018
Stockholders' Equity Note [Abstract]
Schedule of Stock by Class [Table Text Block]	Reconciliation of Outstanding Common Stock Class A Class B Total Shares Dollars Shares Dollars Shares Dollars (Dollars in thousands) Outstanding at January 1, 2017 24,882,542 $ 152,903 11,413 $ 72 24,893,955 $ 152,975 Issuance of common stock under compensation plans 34,613 440 — — 34,613 440 Outstanding at June 30, 2017 24,917,155 $ 153,343 11,413 $ 72 24,928,568 $ 153,415 Outstanding at January 1, 2018 24,919,113 $ 153,589 11,413 $ 72 24,930,526 $ 153,661 Issuance of common stock under compensation plans 16,694 320 — — 16,694 320 Purchase of common stock (129,011 ) (795 ) — — (129,011 ) (795 ) Outstanding at June 30, 2018 24,806,796 $ 153,114 11,413 $ 72 24,818,209 $ 153,186
Schedule of Comprehensive Income (Loss) [Table Text Block]	Accumulated Other Comprehensive Income, Net of Tax and Other Offsets Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Balance at January 1, 2017 $ 156,963 $ 311 $ (7,719 ) $ 149,555 Other comprehensive income before reclassifications 61,285 1,201 — 62,486 Reclassification adjustments (55 ) — 371 316 Balance at June 30, 2017 $ 218,193 $ 1,512 $ (7,348 ) $ 212,357 Balance at January 1, 2018 $ 295,169 $ 537 $ (10,723 ) $ 284,983 Net unrealized gains on equity securities (2) (5,480 ) — — (5,480 ) Other comprehensive income (loss) before reclassifications (149,645 ) 2,118 — (147,527 ) Reclassification adjustments (1,424 ) — 529 (895 ) Balance at June 30, 2018 $ 138,620 $ 2,655 $ (10,194 ) $ 131,081 (1) Includes the impact of taxes, deferred acquisition costs, value of insurance in force acquired, unearned revenue reserves and policyholder liabilities. See Note 2 to our consolidated financial statements for further information. (2) See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change.
Disclosure of Reclassification Amount [Text Block]	Accumulated Other Comprehensive Income Reclassification Adjustments Six months ended June 30, 2018 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital gains on sales of investments $ (1,795 ) $ — $ — $ (1,795 ) Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities (8 ) — — (8 ) Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 668 668 Reclassifications before income taxes (1,803 ) — 668 (1,135 ) Income taxes 379 — (139 ) 240 Reclassification adjustments $ (1,424 ) $ — $ 529 $ (895 ) Accumulated Other Comprehensive Income Reclassification Adjustments Six months ended June 30, 2017 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital losses on sales of investments $ (174 ) $ — $ — $ (174 ) Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities 89 — — 89 Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 571 571 Reclassifications before income taxes (85 ) — 571 486 Income taxes 30 — (200 ) (170 ) Reclassification adjustments $ (55 ) $ — $ 371 $ 316 (1) See Note 2 to our consolidated financial statements for further information.

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands, except per share data) Numerator: Net income attributable to FBL Financial Group, Inc. $ 32,428 $ 32,291 $ 56,059 $ 58,724 Less: Dividends on Series B preferred stock 37 37 75 75 Income available to common stockholders $ 32,391 $ 32,254 $ 55,984 $ 58,649 Denominator: Weighted average shares - basic 24,916,597 25,031,312 24,960,391 25,033,307 Effect of dilutive securities - stock-based compensation 12,903 19,663 14,405 20,777 Weighted average shares - diluted 24,929,500 25,050,975 24,974,796 25,054,084 Earnings per common share $ 1.30 $ 1.29 $ 2.24 $ 2.34 Earnings per common share - assuming dilution: $ 1.30 $ 1.29 $ 2.24 $ 2.34

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Information [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Reconciliation Between Net Income and Non-GAAP Operating Income Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Net income attributable to FBL Financial Group, Inc. $ 32,428 $ 32,291 $ 56,059 $ 58,724 Net income adjustments: Initial impact of the Tax Act (1) 754 — 1,823 — Net realized gains/losses on investments (2) (3) (295 ) (788 ) 2,129 (234 ) Change in net unrealized gains/losses on derivatives (2) (194 ) (686 ) 315 (685 ) Non-GAAP operating income $ 32,693 $ 30,817 $ 60,326 $ 57,805 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. See Note 2 to our consolidated financial statements for further information. (2) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (3) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Financial Information Concerning our Operating Segments Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Pre-tax non-GAAP operating income: Annuity $ 15,998 $ 18,174 $ 32,580 $ 34,595 Life Insurance 16,381 17,631 27,278 31,380 Corporate and Other 3,084 4,195 4,965 8,357 Total pre-tax non-GAAP operating income 35,463 40,000 64,823 74,332 Income taxes on non-GAAP operating income (2,770 ) (9,183 ) (4,497 ) (16,527 ) Non-GAAP operating income $ 32,693 $ 30,817 $ 60,326 $ 57,805 Non-GAAP operating revenues: Annuity $ 56,415 $ 56,833 $ 113,850 $ 111,884 Life Insurance 109,581 107,068 217,308 211,211 Corporate and Other 23,869 24,104 47,980 47,770 189,865 188,005 379,138 370,865 Net realized gains/losses on investments (1) (2) 340 794 (2,886 ) 313 Change in net unrealized gains/losses on derivatives (1) (260 ) 198 (4,132 ) (261 ) Consolidated revenues $ 189,945 $ 188,997 $ 372,120 $ 370,917 (1) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (2) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Equity Income (Loss) by Operating Segment Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Pre-tax equity income (loss): Life Insurance $ 1,292 $ 1,289 $ 1,987 $ 2,455 Corporate and Other (2,200 ) (2,279 ) (3,711 ) (3,903 ) (908 ) (990 ) (1,724 ) (1,448 ) Income taxes 3,749 3,914 7,489 7,603 Equity income, net of related taxes, included in non-GAAP operating income 2,841 2,924 5,765 6,155 LIHTC equity losses related to the enactment of the Tax Act (1) (754 ) — $ (1,823 ) $ — Equity income, net of related income taxes $ 2,087 $ 2,924 $ 3,942 $ 6,155 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. Such investments are accounted for under the equity method of accounting with income/loss recorded in arrears. See Note 2 to our consolidated financial statements for further information.
Reconciliation of Non-GAAP measures [Table Text Block]	Reconciliation of Traditional Life Insurance Premiums, Net of Reinsurance Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Traditional and universal life insurance premiums collected $ 77,900 $ 75,162 $ 154,163 $ 148,735 Premiums collected on interest sensitive products (27,849 ) (26,164 ) (54,431 ) (50,879 ) Traditional life insurance premiums collected 50,051 48,998 99,732 97,856 Change in due premiums and other 1,040 1,264 856 840 Traditional life insurance premiums as included in the Consolidated Statements of Operations $ 51,091 $ 50,262 $ 100,588 $ 98,696 There is no comparable GAAP financial measure for premiums collected on annuities and universal life-type products. GAAP revenues for those interest sensitive and variable products consist of various policy charges and fees assessed on those contracts, as summarized in the chart below. Interest Sensitive Product Charges by Segment Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (Dollars in thousands) Annuity Surrender charges and other $ 1,217 $ 1,202 $ 2,419 $ 2,337 Life Insurance Administration charges $ 4,194 $ 3,899 $ 8,240 $ 7,764 Cost of insurance charges 12,681 12,369 25,218 24,404 Surrender charges 568 469 1,249 994 Amortization of policy initiation fees 1,141 620 1,755 1,284 Total $ 18,584 $ 17,357 $ 36,462 $ 34,446 Corporate and Other Administration charges $ 1,325 $ 1,377 $ 2,641 $ 2,802 Cost of insurance charges 7,195 7,269 14,335 14,594 Surrender charges 20 27 43 79 Separate account charges 2,165 2,027 4,310 4,029 Amortization of policy initiation fees 400 197 794 370 Total $ 11,105 $ 10,897 $ 22,123 $ 21,874 Interest sensitive product charges as included in the Consolidated Statements of Operations $ 30,906 $ 29,456 $ 61,004 $ 58,657

Significant Accounting Polici24

Significant Accounting Policies Recent accounting pronouncements (Details) - Accounting Standards Update 2016-01 [Member] $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018USD ($)$ / shares	Jun. 30, 2018USD ($)$ / shares
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 0	$ 0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	$ 600	$ 1,900
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share | $ / shares	$ 0.02	$ 0.08
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share | $ / shares	$ 0.02	$ 0.08
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 5,480	$ 5,480

Investment Operations Available

Investment Operations Available-for-sale Securities (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis		$ 6,922,505	$ 6,757,250
Available-for-sale Equity Securities, Amortized Cost Basis		99,279	96,715
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		342,978	561,717
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			7,695
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(92,068)	(27,000)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax			(265)
Available-for-sale Securities		7,173,415	7,291,967
Available-for-sale Securities, Equity Securities		104,026	104,145
Non-credit losses on other-than-temporary impairments	[1]	3,361	680
Corporate
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		3,259,368	3,374,927
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		169,981	329,299
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(56,088)	(15,955)
Available-for-sale Securities	[2]	3,373,261	3,688,271
Non-credit losses on other-than-temporary impairments		0	(504)
Hybrid preferred securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities		13,700	17,500
Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities		20,600	21,700
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		577,566	483,671
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		29,353	35,890
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(7,450)	(3,280)
Available-for-sale Securities		599,469	516,281
Non-credit losses on other-than-temporary impairments		1,788	339
Commercial mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		863,195	674,076
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		19,067	34,464
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(21,289)	(3,233)
Available-for-sale Securities		860,973	705,307
Non-credit losses on other-than-temporary impairments		0	0
Other asset backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		770,178	818,071
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		17,452	18,645
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(3,606)	(3,214)
Available-for-sale Securities		784,024	833,502
Non-credit losses on other-than-temporary impairments		1,573	845
United States Government and agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		20,491	23,378
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		1,099	1,606
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(230)	(79)
Available-for-sale Securities		21,360	24,905
Non-credit losses on other-than-temporary impairments		0	0
State, municipal and other government [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		1,431,707	1,383,127
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		106,026	141,813
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(3,405)	(1,239)
Available-for-sale Securities		1,534,328	1,523,701
Non-credit losses on other-than-temporary impairments		$ 0	0
Non-redeemable preferred stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis			92,951
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			7,146
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax			(265)
Available-for-sale Securities, Equity Securities			99,832
Common Stock
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis			3,764
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			549
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax			0
Available-for-sale Securities, Equity Securities			$ 4,313
[1]	Non-credit losses subsequent to the initial impairment measurement date on other-than-temporary impairment (OTTI) losses are included in the gross unrealized gains and gross unrealized losses columns above. The non-credit loss component of OTTI losses for residential mortgage-backed and other asset-backed securities at June 30, 2018 and December 31, 2017 were in an unrealized gain position due to increases in estimated fair value subsequent to initial recognition of non-credit losses on such securities.
[2]	Corporate securities include hybrid preferred securities with a fair value of $13.7 million at June 30, 2018 and $17.5 million at December 31, 2017. Corporate securities also include redeemable preferred stock with a fair value of $20.6 million at June 30, 2018 and $21.7 million at December 31, 2017.

Investment Operations Availab26

Investment Operations Available-for-sale Fixed Maturities by Maturity Date (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in one year or less, amortized cost basis	$ 129,205
Due after one year through five years, amortized cost basis	547,317
Due after five years through ten years, amortized cost basis	713,103
Due after ten years, amortized cost basis	3,321,941
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	4,711,566
Mortgage-backed and other asset-backed, amortized cost basis	2,210,939
Total fixed maturities, amortized cost basis	6,922,505	$ 6,757,250
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in one year or less, fair value	132,022
Due after one year through five years, fair value	566,723
Due after five years through ten years, fair value	727,046
Due after ten years, fair value	3,503,158
Total fixed maturities with maturity date, fair value	4,928,949
Mortgage-backed and other asset-backed, fair value	2,244,466
Total fixed maturities, fair value	$ 7,173,415	$ 7,291,967

Investment Operations Net Unrea

Investment Operations Net Unrealized Gains (Losses) on Investments in AOCI (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Net Unrealized Gains Losses [Line Items]
Assumed changes in amortization of DAC	$ (65,530)	$ (147,173)
Assumed changes in amortization pattern of VIIF	(9,459)	(14,870)
Assumed changes in amortization pattern of URR	7,108	12,705
Assumed change in policyholder liability	(4,199)	(18,499)
Provision for deferred income taxes	(37,555)	(78,605)
Accumulated other comprehensive income	131,081	284,983	$ 149,555
Debt Securities [Member]
Net Unrealized Gains Losses [Line Items]
Unrealized appreciation on fixed maturities available for sale	250,910	534,718
Equity Securities [Member]
Net Unrealized Gains Losses [Line Items]
Unrealized appreciation on fixed maturities available for sale		7,430
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Net Unrealized Gains Losses [Line Items]
Unrealized appreciation on fixed maturities available for sale	250,910	542,148
Accumulated other comprehensive income	$ 141,275	$ 295,706

Investment Operations Unrealize

Investment Operations Unrealized Losses by Length of Time (Details) $ in Thousands	Jun. 30, 2018USD ($)issuerssecurities	Dec. 31, 2017USD ($)issuerssecurities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities	642	247
Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Issuers | issuers	406	154
Corporate Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 927,826	$ 85,019
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(36,269)	(1,261)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	164,984	183,820
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(19,819)	(14,694)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,092,810	268,839
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (56,088)	$ (15,955)
percent of total	60.90%	59.10%
Available for sale Securities Continuous Unrealized Loss Position Maximum Loss by issuer	$ 2,000
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	245,127	$ 76,393
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(6,475)	(1,757)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	27,229	31,779
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(975)	(1,523)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	272,356	108,172
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (7,450)	$ (3,280)
percent of total	8.10%	12.10%
Commercial mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 442,114	$ 151,158
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(18,046)	(2,078)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	29,415	16,398
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(3,243)	(1,155)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	471,529	167,556
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (21,289)	$ (3,233)
percent of total	23.10%	12.00%
Other asset backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 299,747	$ 159,111
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2,234)	(2,006)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	67,874	71,064
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,372)	(1,208)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	367,621	230,175
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (3,606)	$ (3,214)
percent of total	3.90%	11.90%
United States Government and agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 5,010	$ 5,698
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(180)	(47)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,846	1,864
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(50)	(32)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	6,856	7,562
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (230)	$ (79)
percent of total	0.30%	0.30%
State, municipal and other government [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 103,189	$ 5,904
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,829)	(96)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	17,393	20,505
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,576)	(1,143)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	120,582	26,409
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (3,405)	$ (1,239)
percent of total	3.70%	4.60%
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 2,023,013	$ 483,283
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(65,033)	(7,245)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	308,741	325,430
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(27,035)	(19,755)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,331,754	808,713
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (92,068)	$ (27,000)
percent of total	100.00%	100.00%
Non-redeemable preferred stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 2,819
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(71)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		4,807
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(194)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		7,626
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(265)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		2,819
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(71)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		4,807
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(194)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		7,626
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (265)

Investment Operations Credit lo

Investment Operations Credit loss component of Other-than-temporary Impairments on Fixed Maturities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance at beginning of period	$ (12,392)	$ (14,500)
Reductions due to securities sold	3,369	829
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Change in Status	2,529	587
Balance at end of period	$ (6,494)	$ (13,084)

Investment Operations Realized

Investment Operations Realized Gains (Losses) - Recorded in Income (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2018		Jun. 30, 2017	Jun. 30, 2018		Jun. 30, 2017
Gain (Loss) on Investments [Line Items]
Realized Gain (Loss) on Disposition of Other Financial Assets		$ (5)		$ 40	$ (18)		$ 40
Realized Gains (Loss) on sales of investments		1,707		921	1,777		518
Net realized capital gains on sales of investments		841		921	(906)		518
Net impairment loss recognized in earnings		(504)		0	(1,799)		(66)
Realized gains (losses) on investments recorded in income		337		921	(2,705)		452
Proceeds from Sale of Available-for-sale Securities					56,300		85,100
Cost-method Investments [Member]
Gain (Loss) on Investments [Line Items]
Realized Gain (Loss) on Sales of Other Real Estate		0		304	0		304
Debt Securities [Member] | Categories of Investments, Marketable Securities, Available-for-sale Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross gains - fixed maturities - available for sale		1,713		1,081	1,796		1,205
Gross losses - fixed maturities - available for sale		(1)		(414)	(1)		(941)
Equity Securities [Member] | Categories of Investments, Marketable Securities, Available-for-sale Securities [Member]
Gain (Loss) on Investments [Line Items]
Realized Gain (Loss) on sales of Equity Securities		0		(90)	0		(90)
Other credit-related [Member]
Gain (Loss) on Investments [Line Items]
Net impairment loss recognized in earnings	[1]	(504)		0	(1,799)		(66)
Accounting Standards Update 2016-01 [Member]
Gain (Loss) on Investments [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income		$ (866)	[2]	$ 0	$ (2,683)	[2]	$ 0
[1]	Amount represents credit-related losses for fixed maturities written down to fair value through income and impairment losses related to investments accounted for under the equity method of accounting, which are included in securities and indebtedness of related parties within our consolidated balance sheets.
[2]	See Note 1 to our consolidated financial statements for discussion of change in accounting policy for equity securities during the quarter.

Investment Operations Mortgage

Investment Operations Mortgage Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Mortgage Loans on Real Estate [Line Items]
Contractual Obligation	$ 16,200
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 982,987	$ 971,812
Percentage of Mortgage Loans	100.00%	100.00%
Year of origination 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 46,500
Percentage of Mortgage Loans	4.60%
Year of origination 2017 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 211,055	$ 214,365
Percentage of Mortgage Loans	21.50%	22.10%
Year of origination 2016 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 151,923	$ 154,359
Percentage of Mortgage Loans	15.50%	15.90%
Year of origination 2015 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 135,616	$ 144,890
Percentage of Mortgage Loans	13.80%	14.90%
Year of origination 2014 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 76,363	$ 77,866
Percentage of Mortgage Loans	7.80%	8.00%
Year of origination prior [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 361,530	$ 380,332
Percentage of Mortgage Loans	36.80%	39.10%
0% to 50% loan to value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 381,586	$ 334,037
Percentage of Mortgage Loans	38.80%	34.40%
51% to 60% loan-to-value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 250,732	$ 258,359
Percentage of Mortgage Loans	25.50%	26.60%
61% to 70% loan-to-value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 310,805	$ 297,404
Percentage of Mortgage Loans	31.60%	30.60%
71% to 80% loan-to-value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 21,212	$ 63,116
Percentage of Mortgage Loans	2.20%	6.50%
81% to 90% loan to value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 18,652	$ 18,896
Percentage of Mortgage Loans	1.90%	1.90%
South Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 278,061	$ 296,947
Percentage of Mortgage Loans	28.30%	30.50%
Pacific [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 155,917	$ 146,320
Percentage of Mortgage Loans	15.90%	15.00%
West North Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 124,177	$ 127,096
Percentage of Mortgage Loans	12.60%	13.10%
Mountain [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 103,331	$ 105,627
Percentage of Mortgage Loans	10.50%	10.90%
East North Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 102,597	$ 91,971
Percentage of Mortgage Loans	10.40%	9.50%
West South Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 92,322	$ 85,566
Percentage of Mortgage Loans	9.40%	8.80%
East South Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 66,063	$ 67,228
Percentage of Mortgage Loans	6.70%	6.90%
New England [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 34,286	$ 35,005
Percentage of Mortgage Loans	3.50%	3.60%
Middle Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 26,233	$ 16,052
Percentage of Mortgage Loans	2.70%	1.70%
Office [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 415,920	$ 410,090
Percentage of Mortgage Loans	42.30%	42.20%
Retail [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 295,997	$ 292,257
Percentage of Mortgage Loans	30.10%	30.10%
Industrial [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 208,815	$ 207,180
Percentage of Mortgage Loans	21.20%	21.30%
Other property type [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 62,255	$ 62,285
Percentage of Mortgage Loans	6.40%	6.40%

Investment Operations Impaired

Investment Operations Impaired mortgage loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	$ 18,826	$ 19,027
Financing Receivable, Allowance for Credit Losses	(397)	(497)	$ (615)	$ (713)
Impaired Financing Receivable, Recorded Investment	$ 18,429	$ 18,530

Investment Operations Allowance

Investment Operations Allowance on Mortgage Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 497	$ 713
Charge offs	(100)	(98)
Balance at end of period	$ 397	$ 615

Investment Operations LIHTC Inv

Investment Operations LIHTC Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ 504	$ 0	$ 1,799	$ 66
Pre-Tax on Equity Income (Loss)	(908)	(990)	(1,724)	(1,448)
Equity Method Investments	127,876		127,876		$ 130,240
Investment Tax Credit	3,558	3,568	7,127	7,097
Income (Loss) from Equity Method Investments	2,087	2,924	3,942	6,155
Affordable Housing Tax Credit Investments
Schedule of Equity Method Investments [Line Items]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net			800
Pre-Tax on Equity Income (Loss)	900		2,300
Equity Method Investments	75,400		75,400		$ 82,400
Income (Loss) from Affordable Housing Projects, Equity Method Investments	(3,304)	(2,938)	(6,309)	(4,743)
Tax impact of Income from Equity Method Investments	694	1,028	1,325	1,660
Income (Loss) from Equity Method Investments	$ 948	$ 1,658	$ 2,143	$ 4,014

Investment Operations Other (De

Investment Operations Other (Details) $ in Thousands	Jun. 30, 2018USD ($)
Summary of Investment Holdings [Line Items]
Other Commitment	$ 43,400
Qualified Affordable Housing Project Investments, Commitment	1,604
Affordable Housing Tax Credit Investments
Summary of Investment Holdings [Line Items]
Other Commitment, Due in Next Twelve Months	472
Other Commitment, Due in Second Year	248
Other Commitment, Due in Third Year	$ 884

Investment Operations Variable

Investment Operations Variable Interest Entities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	$ 116,715	$ 117,523
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	160,065	168,553
Low income housing tax credits [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	75,374	82,417
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	76,978	84,103
Investment companies [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	31,300	25,335
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	62,706	62,372
Real estate limited partnerships [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	9,317	8,589
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	19,463	20,590
Other VIE investments [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	724	1,182
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 918	$ 1,488

Investment Operations Derivativ

Investment Operations Derivative instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Derivative assets	$ 16,771		$ 16,771		$ 19,045
Derivative Liabilities	33,075		33,075		28,042
Derivative, Gain (Loss) on Derivative, Net	2,555	$ 1,123	3,089	$ 2,466
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	9,500		9,500
Net Derivative Exposure	4,800		4,800
Investment Income [Member] | Equity Option [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	2,193	1,400	1,041	3,765
Investment Income [Member] | Embedded Derivative Financial Instruments - MODCO [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	125	(12)	(818)	(1,422)
Investment Income [Member] | Embedded Derivative Financial Instruments - Interest only Security [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(44)	(174)	(79)	(195)
Insurance sensitive product charges [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	281	$ (91)	2,945	$ 318
Other Investments [Member] | Equity Option [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	14,002		14,002		14,824
Reinsurance Recoverable Including Reinsurance Premium Paid [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,145		1,145		2,125
Available-for-sale Securities [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,624		1,624		2,096
Contract Holder Funds [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	32,969		32,969		27,774
Other Liabilities [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 106		$ 106		$ 268

Fair Values Valuation of Financ

Fair Values Valuation of Financial Instruments by Hierarchy Levels (Details) - USD ($) $ in Thousands		Jun. 30, 2018		Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		$ 7,173,415		$ 7,291,967
Other investments		16,771		19,045
Assets held in separate accounts		638,061		651,963
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		14,002		14,824
Cash and short-term investments		38,846		69,703
Reinsurance recoverable		1,145		2,125
Assets held in separate accounts		638,061		651,963
Assets, Fair Value Disclosure		7,968,189		8,134,727
Future policy benefits - index annuity embedded derivatives		32,969		27,774
Other liabilities		106		268
Total liabilities		33,075		28,042
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		0		0
Cash and short-term investments		38,846		69,703
Reinsurance recoverable		0		0
Assets held in separate accounts		638,061		651,963
Assets, Fair Value Disclosure		690,705		735,057
Future policy benefits - index annuity embedded derivatives		0		0
Other liabilities		0		0
Total liabilities		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		14,002		14,824
Cash and short-term investments		0		0
Reinsurance recoverable		1,145		2,125
Assets held in separate accounts		0		0
Assets, Fair Value Disclosure		7,112,352		7,210,358
Future policy benefits - index annuity embedded derivatives		0		0
Other liabilities		106		268
Total liabilities		106		268
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		0		0
Cash and short-term investments		0		0
Reinsurance recoverable		0		0
Assets held in separate accounts		0		0
Assets, Fair Value Disclosure		165,132		189,312
Future policy benefits - index annuity embedded derivatives				27,774
Other liabilities		0		0
Total liabilities		32,969		27,774
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		165,132		189,312
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,173,415		7,291,967
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		8,403		9,078
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,006,936		7,100,984
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		158,076		181,905
Corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	3,373,261		3,688,271
Corporate | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		3,373,261		3,688,271
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		3,342,791		3,654,671
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		30,470		33,600
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		30,470		33,600
Residential mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		599,469		516,281
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		599,469		516,281
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		0
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		575,529		507,157
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		23,940		9,124
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		23,940		9,124
Commercial mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		860,973		705,307
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		860,973		705,307
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		0
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		773,606		619,606
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		87,367		85,701
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		87,367		85,701
Other asset backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		784,024		833,502
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		784,024		833,502
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		0
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		767,725		780,022
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		16,299		53,480
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		16,299		53,480
United States Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		21,360		24,905
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		21,360		24,905
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		8,403		9,078
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		12,957		15,827
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
State, municipal and other government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,534,328		1,523,701
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,534,328		1,523,701
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,534,328		1,523,701
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		97,325		99,832
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		90,269		92,425
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,056		7,407
Common Stock | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,395	[2]	4,313
Common Stock | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,395		4,313
Common Stock | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Common Stock | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		$ 0
Private Equity Funds, Domestic [Member] | Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments Net Asset Value		1,300
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments		$ 8,700
[1]	Corporate securities include hybrid preferred securities with a fair value of $13.7 million at June 30, 2018 and $17.5 million at December 31, 2017. Corporate securities also include redeemable preferred stock with a fair value of $20.6 million at June 30, 2018 and $21.7 million at December 31, 2017.
[2]	private equity fund with a fair value estimate of $1.3 million using net asset value per share as a practical expedient, has not been classified in the fair value hierarchy above per fair value reporting guidance. This fund invests in senior secured middle market loans and has unfunded commitments totaling $8.7 million at June 30, 2018. The investment is not currently eligible for redemption.

Fair Values Level 3 Fixed Matur

Fair Values Level 3 Fixed Maturitiies on a Recurring Basis by Valuation Source (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 7,173,415	$ 7,291,967
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure		165,132	189,312
Corporate Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities	[1]	$ 3,373,261	$ 3,688,271
percent of total		60.90%	59.10%
Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 30,470	$ 33,600
Residential mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 599,469	$ 516,281
percent of total		8.10%	12.10%
Commercial mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 860,973	$ 705,307
percent of total		23.10%	12.00%
Other asset backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 784,024	$ 833,502
percent of total		3.90%	11.90%
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure		$ 7,968,189	$ 8,134,727
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 165,132	$ 189,312
percent of total		100.00%	100.00%
Estimate of Fair Value Measurement [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 3,373,261	$ 3,688,271
Estimate of Fair Value Measurement [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		30,470	33,600
Estimate of Fair Value Measurement [Member] | Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		23,940	9,124
Estimate of Fair Value Measurement [Member] | Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		87,367	85,701
Estimate of Fair Value Measurement [Member] | Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		16,299	53,480
Estimate of Fair Value Measurement [Member] | Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		7,056	7,407
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 120,872	$ 146,460
percent of total		73.20%	77.40%
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 2,257	$ 4,555
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		23,940	9,124
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		78,376	85,701
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		16,299	47,080
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		0	0
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 44,260	$ 42,852
percent of total		26.80%	22.60%
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 28,213	$ 29,045
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		0	0
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		8,991	0
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		0	6,400
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 7,056	$ 7,407
[1]	Corporate securities include hybrid preferred securities with a fair value of $13.7 million at June 30, 2018 and $17.5 million at December 31, 2017. Corporate securities also include redeemable preferred stock with a fair value of $20.6 million at June 30, 2018 and $21.7 million at December 31, 2017.

Fair Values Quantitative Inform

Fair Values Quantitative Information about Unobservable Measurement Inputs (Details) - Fair Value, Measurements, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 165,132		$ 189,312
Future policy benefits - index annuity embedded derivatives			27,774
Index Annuity Embedded Derivatives [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Future policy benefits - index annuity embedded derivatives	$ 32,969		27,774
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit risk Risk margin	Credit risk Risk margin
Input range and weighted average	0.60% - 1.75% (1.15%) 0.15% - 0.40% (0.25%)	0.40% - 1.60% (0.90%) 0.15% - 0.40% (0.25%)
Corporate Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 20,376		27,682
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread	Credit spread
Input range and weighted average	0.98% - 5.52% (3.17%)	0.91% - 6.20% (4.17%)
Commercial mortgage-backed
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 62,694		72,224
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread	Credit spread
Input range and weighted average	1.42% - 3.65% (2.34%)	1.40% - 4.10% (2.50%)
Non-redeemable preferred stock [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 7,056		7,407
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread	Credit spread
Input range and weighted average	3.57% (3.57%)	2.94% (2.94%)
Asset fair value by technique [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 90,126		$ 107,313

Fair Values Level 3 Financial I

Fair Values Level 3 Financial Instruments Changes in Fair Value (Details) - Fair Value, Measurements, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2018		Jun. 30, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		$ 189,312		$ 202,332
Purchases		79,726		90,591
Disposals		(10,211)		(7,626)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(3,740)		(6,151)
Transfers Into Level 3	[1]	7,082		15,367
Transfers out of Level 3	[1]	(97,293)		(79,545)
Amortization included in net income		256		(73)
Asset Balance, end of period		165,132		227,197
Corporate Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		33,600		59,119
Purchases		0		0
Disposals		(7,682)		(3,311)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(812)		778
Transfers Into Level 3		7,082		4,408
Transfers out of Level 3		(2,000)		(22,877)
Amortization included in net income		282		(20)
Asset Balance, end of period		30,470		36,541
Residential mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		9,124		0
Purchases		23,940		21,326
Disposals		0		0
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		0		(1)
Transfers Into Level 3		0	[1]	0
Transfers out of Level 3		(9,124)		(15,307)
Amortization included in net income		0		1
Asset Balance, end of period		23,940		6,019
Commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		85,701		81,434
Purchases		35,531		5,723
Disposals		(423)		(394)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(2,590)		(6,547)
Transfers Into Level 3		0		0
Transfers out of Level 3		(30,826)		(14,544)
Amortization included in net income		(26)		(42)
Asset Balance, end of period		87,367		78,724
Other asset backed securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		53,480		54,368
Purchases		20,255		63,542
Disposals		(2,106)		(3,921)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		13		(269)
Transfers Into Level 3		0		10,959
Transfers out of Level 3		(55,343)		(26,817)
Amortization included in net income		0		(12)
Asset Balance, end of period		16,299		98,388
Non-redeemable preferred stock [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		7,407		7,411
Purchases		0		0
Disposals		0		0
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(351)		114
Transfers Into Level 3		0		0
Transfers out of Level 3		0		0
Amortization included in net income		0		0
Asset Balance, end of period		7,056		7,525
Index Annuity Embedded Derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Liability balance, beginning of period		27,774		15,778
Purchases		5,226		3,566
Settlements		(2,476)		(909)
Realized and unrealized gains (losses), net, included in net income		2,445		(3,860)
Realized and unrealized gains (losses), net, included in other comprehensive income		0		0
Transfers Into Level 3	[1]	0		0
Transfers out of Level 3	[1]	0		0
Liability balance, end of period		$ 32,969		$ 22,295
[1]	Transfers into Level 3 represent assets previously priced using an external pricing service with access to observable inputs no longer available and therefore, were priced using non-binding broker quotes. Transfers out of Level 3 include those assets that we are now able to obtain pricing from a third party pricing vendor that uses observable inputs. The fair values of newly issued securities often require additional estimation until a market is created, which is generally within a few months after issuance. Once a market is created, as was the case for the majority of the security transfers out of the Level 3 category above, Level 2 valuation sources become available. There were no transfers between Level 1 and Level 2 during the periods presented above.

Fair Values Valuation of Fina42

Fair Values Valuation of Financial Instruments not reported at fair value (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 982,987	$ 971,812
Policy loans	194,838	191,398
Other investments	16,771	19,045
Deposit Contracts, Liabilities	312,399	322,630
Short-term Debt	27,000	0
Liabilities related to separate accounts	638,061	651,963
Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	979,716	989,503
Policy loans	232,375	236,223
Other investments	31,753	28,619
Total assets	1,243,844	1,254,345
Future policy benefits	4,010,881	4,119,880
Supplemental contracts without life contingencies	308,067	327,151
Advance premiums and other deposits	257,939	259,099
Short term debt, fair value disclosure	27,000
Long-term debt	82,266	78,628
Liabilities related to separate accounts	636,205	649,610
Total liabilities	5,322,358	5,434,368
Reported Value Measurement [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net		971,812
Policy loans		191,398
Other investments	30,722	27,547
Total assets	1,208,547	1,190,757
Future policy benefits	4,261,390	4,164,593
Supplemental contracts without life contingencies		322,630
Advance premiums and other deposits	257,939	259,099
Long-term debt	97,000	97,000
Liabilities related to separate accounts		651,963
Total liabilities	5,593,789	5,495,285
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Other investments	0	0
Future policy benefits	0	0
Fair Value, Inputs, Level 1 [Member] | Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	0	0
Policy loans	0	0
Other investments	0
Total assets	0	0
Future policy benefits	0	0
Supplemental contracts without life contingencies	0	0
Advance premiums and other deposits	0	0
Long-term debt	0	0
Liabilities related to separate accounts	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Other investments	14,002	14,824
Future policy benefits	0	0
Fair Value, Inputs, Level 2 [Member] | Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	0	0
Policy loans	0	0
Other investments	0
Total assets	0	0
Future policy benefits	0	0
Supplemental contracts without life contingencies	0	0
Advance premiums and other deposits	0	0
Long-term debt	0	0
Liabilities related to separate accounts	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Other investments	0	0
Future policy benefits		27,774
Fair Value, Inputs, Level 3 [Member] | Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	979,716	989,503
Policy loans	232,375	236,223
Other investments	31,753	28,619
Total assets	1,243,844	1,254,345
Future policy benefits	4,010,881	4,119,880
Supplemental contracts without life contingencies	308,067	327,151
Advance premiums and other deposits	257,939	259,099
Short term debt, fair value disclosure	27,000
Long-term debt	82,266	78,628
Liabilities related to separate accounts	636,205	649,610
Total liabilities	$ 5,322,358	$ 5,434,368

Defined Benefit Plan (Details)

Defined Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,493	$ 1,388	$ 2,986	$ 2,776
Interest cost	3,410	3,531	6,821	7,062
Expected return on assets	(5,562)	(4,796)	(11,124)	(9,592)
Amortization of prior service cost	12	33	23	66
Amortization of actuarial loss	3,127	2,530	6,254	5,060
Net periodic pension cost	2,480	2,686	4,960	5,372
FBL Financial Group, Inc. share of net periodic pension costs	760	851	1,520	1,702
Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	134	109	269	218
Interest cost	239	251	479	502
Amortization of actuarial loss	339	293	677	586
Net periodic pension cost	712	653	1,425	1,306
FBL Financial Group, Inc. share of net periodic pension costs	$ 417	$ 388	$ 835	$ 776

Credit Arrangements Short Term

Credit Arrangements Short Term Debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Short-term Debt	$ 27,000	$ 0
Federal Home Loan Bank Advances [Member] | Debt Instrument, Redemption, Period One [Member]
Short-term Debt [Line Items]
Short-term Debt	$ 8,000
Line of Credit Facility, Interest Rate During Period	2.10%
Federal Home Loan Bank Advances [Member] | Debt Instrument, Redemption, Period Two [Member]
Short-term Debt [Line Items]
Short-term Debt	$ 19,000
Line of Credit Facility, Interest Rate During Period	2.13%

Stockholders Equity (Details)

Stockholders Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 48,000
Common Stock Special Dividends Per Share Cash Paid	$ 1.50	$ 1.50
Payment Of Special Cash Dividend	$ 37,300	$ 37,400
Common Stock, Shares, Outstanding	24,818,209	24,928,568	24,930,526	24,893,955
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	16,694	34,613
Issuance of common stock under compensation plans	$ 320	$ 440
Stock Repurchased During Period, Shares	(129,011)
Stock Repurchased During Period, Value	$ (8,849)
Common Class A
Class of Stock [Line Items]
Common Stock, Shares, Outstanding	24,806,796	24,917,155	24,919,113	24,882,542
Common stock, without par value	$ 153,114		$ 153,589
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	16,694	34,613
Stock Repurchased During Period, Shares	(129,011)
Stock Repurchased During Period, Value	$ (8,800)
Common Class B
Class of Stock [Line Items]
Common Stock, Shares, Outstanding	11,413	11,413	11,413	11,413
Common stock, without par value	$ 72		$ 72
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	0	0
Stock Repurchased During Period, Shares	0
Common Stock
Class of Stock [Line Items]
Common stock, without par value	$ 153,186	$ 153,415	153,661	$ 152,975
Issuance of common stock under compensation plans	320	440
Stock Repurchased During Period, Value	(795)
Common Stock | Common Class A
Class of Stock [Line Items]
Common stock, without par value	153,114	153,343	153,589	152,903
Issuance of common stock under compensation plans	320	440
Stock Repurchased During Period, Value	(795)
Common Stock | Common Class B
Class of Stock [Line Items]
Common stock, without par value	72	72	$ 72	$ 72
Issuance of common stock under compensation plans	0	$ 0
Stock Repurchased During Period, Value	$ 0

Stockholders Equity Accumulated

Stockholders Equity Accumulated other comprehensive income (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Accumulated other comprehensive income		$ 131,081		$ 284,983	$ 149,555
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax		(147,527)	$ 62,486
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated other comprehensive income	[1]	138,620	218,193	295,169	156,963
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	[1]	(149,645)	61,285
Accumulated Other-than-Temporary Impairment [Member]
Accumulated other comprehensive income	[1]	2,655	1,512	537	311
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	[1]	2,118	1,201
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated other comprehensive income		(10,194)	(7,348)	$ (10,723)	$ (7,719)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax		0	0
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income		131,081	212,357
reclassifications out of accumulated other comprehensive income [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax		(895)	316
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[2]	(1,424)	(55)
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Other-than-Temporary Impairment [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[2]	0	0
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax		529	$ 371
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		0
Accounting Standards Update 2016-01 [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	[3]	(5,480)
Accounting Standards Update 2016-01 [Member] | Accumulated Other Comprehensive Income (Loss)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	[3]	$ (5,480)
[1]	Includes the impact of taxes, deferred acquisition costs, value of insurance in force acquired, unearned revenue reserves and policyholder liabilities. See Note 2 to our consolidated financial statements for further information.
[2]	See Note 2 to our consolidated financial statements for further information.
[3]	See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change.

Stockholders Equity AOC I Recla

Stockholders Equity AOC I Reclassification Adjustments (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net realized capital gains on sales of investments		$ 841	$ 921	$ (906)	$ 518
Income available to common stockholders		32,391	32,254	55,984	58,649
Income taxes		$ 6,650	$ 13,891	11,337	24,624
reclassifications out of accumulated other comprehensive income [Member]
Net realized capital gains on sales of investments				(1,795)	(174)
Change in offsets to unrealized on investments				(8)	89
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax				668	571
Income available to common stockholders				(1,135)	486
Income taxes				240	(170)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax				(895)	316
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Net realized capital gains on sales of investments	[1]			(1,795)	(174)
Change in offsets to unrealized on investments	[1]			(8)	89
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	[1]			0	0
Income available to common stockholders	[1]			(1,803)	(85)
Income taxes	[1]			379	30
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[1]			(1,424)	(55)
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Other-than-Temporary Impairment [Member]
Net realized capital gains on sales of investments	[1]			0	0
Change in offsets to unrealized on investments	[1]			0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	[1]			0	0
Income available to common stockholders	[1]			0	0
Income taxes	[1]			0	0
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[1]			0	0
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Net realized capital gains on sales of investments				0	0
Change in offsets to unrealized on investments				0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax				668	571
Income available to common stockholders				668	571
Income taxes				(139)	(200)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax				$ 529	$ 371
[1]	See Note 2 to our consolidated financial statements for further information.

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator [Abstract]
Net income attributable to FBL Financial Group, Inc.	$ 32,428	$ 32,291	$ 56,059	$ 58,724
Less: Dividends Series B preferred stock	(37)	(37)	(75)	(75)
Income available to common stockholders	$ 32,391	$ 32,254	$ 55,984	$ 58,649
Denominator [Abstract]
Weighted average shares - diluted	24,929,500	25,050,975	24,974,796	25,054,084
Weighted average shares - basic	24,916,597	25,031,312	24,960,391	25,033,307
Effect of dilutive securities - stock-based compensation	12,903	19,663	14,405	20,777
Earnings per common share	$ 1.30	$ 1.29	$ 2.24	$ 2.34
Earnings per common share - assuming dilution	$ 1.30	$ 1.29	$ 2.24	$ 2.34

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net income attributable to FBL Financial Group, Inc.		$ 32,428	$ 32,291	$ 56,059	$ 58,724
Realized gains/losses on investments (1)	[1],[2]	(295)	(788)	2,129	(234)
Change in net unrealized gains/losses on derivatives	[1]	(194)	(686)	315	(685)
Operating Income (Loss)		32,693	30,817	60,326	57,805
Pre-Tax Operating Income (Loss)		35,463	40,000	64,823	74,332
Income tax on operating income		(2,770)	(9,183)	(4,497)	(16,527)
Operating revenues		189,865	188,005	379,138	370,865
Net realized gains (losses) on investments (1)	[3],[4]	340	794	(2,886)	313
Change in net unrealized gains/losses on derivatives (1)	[3]	(260)	198	(4,132)	(261)
Consolidated revenues		189,945	188,997	372,120	370,917
Pre-Tax on Equity Income (Loss)		(908)	(990)	(1,724)	(1,448)
Income Tax on Equity Income		3,749	3,914	7,489	7,603
Equity Income (Loss), net of related taxes, included in NON-GAAP operating income		2,841	2,924	5,765	6,155
Income (Loss) from Equity Method Investments		2,087	2,924	3,942	6,155
Premiums collected		171,400	165,900	341,000	335,700
Annuity Segment
Segment Reporting Information [Line Items]
Pre-Tax Operating Income (Loss)		15,998	18,174	32,580	34,595
Operating revenues		56,415	56,833	113,850	111,884
Life Insurance Segment
Segment Reporting Information [Line Items]
Pre-Tax Operating Income (Loss)		16,381	17,631	27,278	31,380
Operating revenues		109,581	107,068	217,308	211,211
Pre-Tax on Equity Income (Loss)		1,292	1,289	1,987	2,455
Premiums collected		77,900	75,162	154,163	148,735
Corporate and Other
Segment Reporting Information [Line Items]
Pre-Tax Operating Income (Loss)		3,084	4,195	4,965	8,357
Operating revenues		23,869	24,104	47,980	47,770
Pre-Tax on Equity Income (Loss)		(2,200)	(2,279)	(3,711)	(3,903)
Affordable Housing Tax Credit Investments
Segment Reporting Information [Line Items]
LIHTC equity losses related to the enactment of the Tax Act	[5],[6]	(754)	0	(1,823)	0
Pre-Tax on Equity Income (Loss)		900		2,300
Income (Loss) from Equity Method Investments		$ 948	$ 1,658	$ 2,143	$ 4,014
[1]	Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items.
[2]	Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
[3]	Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items.
[4]	Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
[5]	Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. See Note 2 to our consolidated financial statements for further information.
[6]	Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. Such investments are accounted for under the equity method of accounting with income/loss recorded in arrears. See Note 2 to our consolidated financial statements for further information.

Segment Information Goodwill by

Segment Information Goodwill by segment (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Annuity Segment
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 3.9	$ 3.9
Life Insurance Segment
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 6.1	$ 6.1

Segment Information Reconciliat

Segment Information Reconciliation of non-GAAP measures Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	$ 171,400	$ 165,900	$ 341,000	$ 335,700
Change in due premiums and other	1,040	1,264	856	840
Traditional life insurance premiums	51,091	50,262	100,588	98,696
Interest sensitive product charges	30,906	29,456	61,004	58,657
Life Insurance Segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	77,900	75,162	154,163	148,735
Interest sensitive product charges	18,584	17,357	36,462	34,446
Life Insurance Segment | Admin charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	4,194	3,899	8,240	7,764
Life Insurance Segment | Cost of insurance charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	12,681	12,369	25,218	24,404
Life Insurance Segment | Surrender charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	568	469	1,249	994
Life Insurance Segment | Amortization of policy initiation fees
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	1,141	620	1,755	1,284
Life insurance - interest sensitive
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	27,849	26,164	54,431	50,879
Life insurance - traditional
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	50,051	48,998	99,732	97,856
Annuity Segment | Cost of insurance charges & Surrender charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	1,217	1,202	2,419	2,337
Corporate and Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	11,105	10,897	22,123	21,874
Corporate and Other | Admin charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	1,325	1,377	2,641	2,802
Corporate and Other | Cost of insurance charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	7,195	7,269	14,335	14,594
Corporate and Other | Surrender charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	20	27	43	79
Corporate and Other | Separate account charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	2,165	2,027	4,310	4,029
Corporate and Other | Amortization of policy initiation fees
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	$ 400	$ 197	$ 794	$ 370